Peroxide cured epdm chemical resistance. FDA and NSF-61 compliant O-Rings.

Peroxide cured epdm chemical resistance Peroxide cured EPDM is a better choice for heavier use in applications. It is also highly Sm 2 O 3, a rare earth oxide, with special shell structure, prominent physical, chemical, electrical and magnetic properties is often utilized in surface engineering [10]. Peroxide curing allows EPR to achieve excellent heat resistance, chemical resistance, and mechanical properties. Depending on the material the operating temperatures range between -25 °C/-13 °F and +240 °C/+464 °F Special types can be used The chemical compatibility of elastomers is crucial since rubber can degrade rapidly if the material is not compatible with the chemicals it touches. EPDM treated with peroxide results in the formation of more stable cross-link networks, leading to enhanced resistance against oxidative degradation and acid corrosion. ’s EPDM is an EPDM white FDA 60° Shore A is a rubber material sheet from rolls. In particular, silicone displays outstanding chemical compatibility with water, Resistance data was obtained from FIP’s online Chemical Resistance Guide. 2 Total network density 3. Check Different Chemicals to Determine How Compatible They Are With EPDM The main benefit of C–C bonds is their high thermal stability; therefore peroxide cured vulcanizates exhibit high-temperature ageing resistance and low compression set at elevated temperatures [5]. S. EPDM is used for a number of purposes, to cut custom gaskets and to make flexible sleeves among other things. The peroxide cured EPDM will be prepared to different states of cure by varying active peroxide concentration. EPDM, which is axite-mounted vulcanization process, offers better thermal stability and chemical resistance and better compression properties. Physical Properties Chemical Composition : Physical form : Colour : EPDM 70 Compound 559273 ERIKS’ 559273 is a specialist grade peroxide cured EPDM compound developed for pharmaceutical applications and food contact with improved chemical and thermal resistance. 6962 Special EPDM. For highly permeating media, an FKM backing is also available (GEMÜ code 5T). EPDM’s are not used This can be achieved through various curing systems, such as peroxide curing or sulfur curing, depending on the desired properties and application. EPDM compounds cured with peroxide possess a superior chemical and thermal resistance compared to compounds cured with sulfur. Peroxide-cured compounds are known The results of three experimental studies, i. 88 15 46 Pellet Thermoplastic modification, electrical insulation, molded connectors (peroxide-cured) EPDM with high molecular weight is cured using peroxide cure systems. Peroxide Cured. What is the main advantage of EPDM peroxide curing over sulfur curing? EPDM peroxide curing offers superior temperature and chemical resistance, making it ideal for applications in Explore the EPDM (Ethylene Propylene Diene Monomer) chemical resistance chart to ensure compatibility in various chemical environments. Very good temperature flexibility, superior resistance to water and steam. In contrast, polysulfide crosslinks formed in sulfur cure are thermally weak but are mobile under stress and can slip along the hydrocarbon chain. White EPDM is available for Food or other sanitary applications. Ethylene-Propylene (EP, EPDM) General Description: EPDM rubber (ethylene propylene diene monomer rubber) is an elastomer which is characterized by wide range of applications and good chemical resistance. This material offers: • Higher Temperature Resistance. The cure analysis shows highest rheometric torque for the peroxide cured EPDM compounds with longer cure time compared to the accelerated sulphur cured EPDM compounds The chemical resistance test was done based on ASTM D 865-88 standards using an ADT solution at 80 °C which is very close to a typical simulated PEM fuel cell environment. Because of the chemistry of the polymer chain, EPR can only be vulcanized with a peroxide-based cure system. 1. To our knowledge, it is the best performing EPDM available. The peroxide cure formulation used for EPR results in a rubber compound with superior performance characteristics. Due to the specific nature of chemical resistance, you should confirm that Viton is resistant to the actual chemicals it will be exposed to in your This synthetic rubber is cured in one of two ways: with sulfur or with peroxide. Enhanced tear strength. EPDM (Standard) EPDM (Peroxide-cured) NBR FKM Silicone; Tensile Strength: Moderate: Higher: High: High: Moderate: Elongation: High: Moderate: Moderate: Moderate: Very High The degradation of peroxide-cured EPDM and sulfur-cured EPDM in an acid solution (12. EPDM Sulphur cured: inexpensive material for normal use, maximum temperature of +120°C (+250°F). NSF61 This guide delves into the intricacies of peroxide-cured EPDM, exploring its chemical composition, curing process, and performance characteristics. EPDM Perox (Ethylene Propylene Diene Monomer peroxide-cured) is an advanced variant of standard EPDM, characterized by superior chemical and thermal resistance due to the peroxide vulcanization process. EPDM has good EPDM is available as O-rings, sheet, gaskets, custom mouldings, solid extrusions and sponge. EPDM MATERIAL DATA SHEET Material Type: Peroxide Cured Ethylene Propylene Diene Monomer Application: Excellent Base, Steam and Water Resistance. Aluminum Viton Buna N Neoprene EPDM Silicone Ammonium Phosphate, Monobasic A C B B B A A A A A Ammonium Phosphate, Tribasic A B B B B A A A A A Ammonium Sulfate A B B B A A A A A A Ammonium Thiosulfate A A A Amyl Acetate A A A A Today most ethylene propylene rubber is EPDM with a sulfur cure but is also available with a peroxide cure for increased physical properties. The metallic coagent-peroxide crosslink bond is The GEMÜ code 5M diaphragm has a two-piece design and comprises a PTFE face and a peroxide cured EPDM backing. Simple formulation of rubber compounding, good electrical properties of vulcanizates, good shelf life stability and no staining of the finished Its temperature tolerance is one of EPDM’s primary mechanical properties. Features: FDA, NSF61, and 3A Sanitary compliant Cure System: Peroxide Service Temperature: -65 to 300o F (-54 to 150o C) Ethylene-Propylene rubbers make up a family of synthetic elastomers characterized by excellent chemical and thermal resistance. EPDM rubber (ethylene propylene diene monomer rubber) is an elastomer which is characterized by wide range of applications and good chemical resistance. Product Description Chemical Composition : Physical form : Colour : Storage stability * : Ethylene / Propylene / Diene Terpolymer, Peroxide cured O-Rings / Mouldings Black ± 7 years Chemical Compatibility Chart (cont. This grade of EPDM has been cured using a peroxide CHEMICAL COMPATIBILITY CHART . If your gasket will be outdoors and exposed to temperatures between -40 C and 120 C the Peroxide-cured EPDM gasket is a great choice. 65 PVC/CPVC EPDM 316SS Hydrofluosilicic Acid XLPE 1. Higher tensile strength. Acetic Acid ≤ 80% XLPE 1. This enables it to withstand the effects of different substances encountered in various industries. These materials can be compounded in a variety of ways for use in a wide range of demanding applications. EPDM What is the difference between sulfur cured EPDM and peroxide cured EPDM? While there are a number of differences between these two rubber product types, the primary distinction is in high temperature resistance. So far, there have been few reports about the direct addition of rare earth oxide into a rubber matrix to strengthen mechanical properties. The USP study was conducted based upon the references: Product Description Peroxide Cure EPDM Peroxide Cure EPDM provides exceptional heat and aging stability and better compression set performance at higher temperatures. 1/1 Description Chemical composition: Terpolymer of ethylene, propylene and diene Physical form: O-rings, moulded parts Colour: Black Temperature resistance: -55°C to +150 °C EPDM soufre et EPDM peroxyde. Compound Compatibility Rating E350-70 Black Peroxide Cured EPDM 8 - 10 Weeks 70 -65F to +300F High Temp Water Applications E35070/C Chloramine Resistant EPDM 8 - 10 Weeks 70 -65F to +300F Chloramine Applications 4 Weeks 80 -22F to +590F Exceptional Chemical Resistance Standard Stock & Quick Shipment The most common rubber compounds in all AS568 O-Ring sizes are stocked for EPDM can be sulphur, peroxide or resin cured with outstanding weathering resistance properties, water resistance, good low temperature flexibility, mechanical properties and a temperature resistance up to 150 °C. Here is the rubber compatibility chart that rates all popular rubber materials that comes into contact with various chemicals. High temperature and chemical resistance, as well as long-term sealing ability are all attained with Prince’s unique gaskets. Temperature Range (dry heat) low: high-60 °F-51 °C: 300 °F 149 °C: Application Advantages » excellent weather resistance EPDM Peroxide 80 WRAS G is a Peroxide Cured EPDM elastomer, with good physical properties & meets the requirements of BS 6920-1:2000 and BS EN681-1 WA 80. It performs well in outdoor applications due to its resistance to Sulfur, peroxide and combined sulfur and peroxide curing systems were applied for cross-linking of unfilled and carbon black filled rubber compounds based on ethylene-propylene-diene-monomer rubber. It is specifically designed to display excellent ozone and high temperature resistance. The process of peroxide curing of rubber, particularly in the case of EPDM, Peroxide-cured EPDM can resist engine coolants, alcohols, hot water, ketones, steam, organic and inorganic acids, brake fluids formulated using polyglycols, as well as Iyes. e. matrix based on EPDM. EPDM can be used in a wide temperature range, has good resistance to ozone, weathering and ageing and is resistant to hot water and steam. The ERIKS compound EPDM 559003 is a Peroxide cured EPDM-compound with many approvals, good chemical resistance and better physical properties than stan-dard sulphur cured EPDM-compounds. com Epoxy Polycarbonate PBT Brass 316 S. FDA and NSF-61 compliant O-Rings. It is manufactured by Panacea® and is an ideal gasket material for parts requiring a wide resistance to chemical utilized and produced in Chlorine, Caustic, and Bleach Peroxide Cured EPR, EPDM Improved Resistance to Chemicals & Oils No Staining or Discoloration of Metals and PVC's Unlikely to Bloom or Discolor Sulphur Cured EPR, EPDM Higher Tensile Strength Higher Tear Strength Less restrictive on choice of fillers Low odour during curing process EPDM 70-compound 559260 is a standard EPDM Terpolymer, Peroxide cured. Aging resistance. Peroxide cures can be adopted if the application requires resistance to temperatures of 150–175°C and a very low compression set in tank flanges. Figure 1. Peroxide-cured EPDM gaskets When utilized in industrial settings, EPDM peroxide cured gaskets and seals are subjected to The degradation of peroxide-cured EPDM and sulfur-cured EPDM in an acid solution (12. Chemical resistance data is based on 72° F (22° C) unless otherwise noted A- Suitable B - Good, minor effect, slight corrosion or discoloration 1 - Satisfactory to 120°F (48° C) EPDM A B B X Epoxy (epoxide polymers) F B B X FKM (fluoroelastomers, Viton®) A A A A Hydrogen Peroxide Material Compatibility Chart from ISM and IS Med Good resistance to many alkalis, acids and polar solvents, except for mineral oils. Replies continue below can you not switch to a more compatible elastomer (EPDM would be one). Sulphur cured EPDM generally have higher tensile and tear When comparing these materials with respect to electrical current resistance, EPDM has a slight advantage. Peroxide cured EPDM rubber offers enhanced heat stability In this report, we present our new Good Processability EPDM grade cured by a peroxide curing system which is designed for anti-vibration rubber parts. In particular, EPM/EPDM features good resistance to such polar solvents as ketones (MEK and Acetone). Common However, the major part of the coagent will not dissolve and will form phase-separated domains in the EPDM matrix. the low polarity of the EPDM and the one with low ethylene content being amorphous provides these grades good chemical Most chemical compatibility guides for rubber require total chemical exposure for 70 hours. NBR compounds cured by different amounts of DCP and NBR vulcanizates filled with various concentrations of carbon black (CB) and a constant amount of SM1457 Peroxide Cured EPDM Heat Resistant Rubber Sheet 60º Shore is a peroxide cured, heat resistant rubber sheet made of EPDM rubber, suitable for use in applications where good weather and ozone resistance is required. Peroxide-cured EPDM can withstand temperatures up to 300°F (150°C) whereas sulfur cured EPDM can only resist temperatures up to 250°F (120°C). EPDM has good resistance to alcohols, greases, detergents, ketones, silicone oils, and mild acids. Temperature Resistance: Minimum Temperature -56⁰ Celsius Maximum Temperature 154⁰ Celsius EPDM: Peroxide-Cured vs. The long-term exposure will provide a good representation of how the rubber will perform in an application when exposed to a specific chemical. They show low swelling with almost all media. The media resistance compares to that of NBR. This material meets ASTM D-2000-2BA specifications. Resistant to hot water, detergents, non-oxidising acids and alkalis. 86 4 -10 Bales Blends with butyl rubber in inner tubes, peroxide-cured belts NORDEL™ IP 3720P 0. Peroxide Cure EPDM. EPDM is also good for chemical-based fluids such as anti-freeze, synthetic detergents, acetone, boric acid, ethanol, formaldehyde, and silver nitrate. Reglin Peroxide cured EPDM Rubber Sheet is made from a premium EPDM rubber compound and will display very high temperature and excellent chemical resistance to both acids and alkalis. Made High-performing, peroxide-cured EPDM sheet rubber is highly weather, UV, and ozone resistant. Product Description 3. Good resistance to aging, cold and heat. Blaylock offers a superior peroxide-cured EPDM product for added strength and resistance. Features: With a working temperature range of 60⁰F to +300⁰F, depending upon the compound, EPM/EPDM excels in its resistance to the very same chemical agents that cause rapid and extreme deterioration in Nitriles. The differences in compression set resistence show that both materials are equally Poor. Please check the bottom of the page for explanation of Chemical Resistance: EPDM rubber is resistant to a wide range of chemicals, including alkali, mild acidic and oxygenated solvents. Sulfur-Cured; O-Ring Shelf Life; Tables & Calculators. 4 23. During the aging process, the Coru1457 Peroxide Cured EPDM Heat Resistant Rubber Sheet 60º Shore is a Peroxide Cured, heat resistant rubber sheet made of EPDM rubber, suitable for use in applications where good weather and ozone resistance is required. TYPICAL APPLICATIONS Calcium lignosulfonate in different loadings was applied to the rubber matrix based on EPDM. Peroxide-cured It has good resistance to most water-based chemicals, vegetable-based hydraulic oils and can also provide a small amount of resistance to alcohols. Expertly designed, it facilitates the transfer of air, water (including PCW), and coolant solutions. In this treatise, the state of cure of both peroxide and sulfur cured EPDM unfilled compound will be evaluated. Upvote 0 Downvote. com. The situation is similar for the fully soluble EPM-g-furan precursors as the BM cross-linked EPM-g When comparing these materials with respect to electrical current resistance, EPDM has a significant advantage. Nevertheless, peroxide and sulfur-cured EPDM share many of the same advantages, like strong steam resistance. Peroxide cured EPDM can withstand temperatures up to 300°F whereas sulphur cured can only resist temperatures up to 250°F. EPDM compounds are frequently used with food, water and steam applications and offer display very high temperature and excellent chemical resistance to both acids and alkalis. Good resistance to steam. It is cured using a peroxide system which gives it superior heat and ozone/UV resistance compared to standard EPDM, making it highly weather resistant and suitable for extended outdoor use. Feature The used peroxide cured compounds grant excellent temperature resistance and a EPDM compounds are typically developed with a sulfur or peroxide cure system. 2. In addition, they are suitable for contact with alkaline cleaning fluids. Peroxide cured EPDM can resist temperatures up to +300°F, while sulfur cured EPDM will generally be rated up to +250°F maximum. . 4 Enhanced distinction between networks chains and defects in swollen crosslinked EPDM EPDM, Peroxide-cured (Panacea ® 6962) Panacea® 6962 is a special compound elastomer of EPDM compounded with a high content of polymer exceeding 53%, with a peroxide cure. The development of steam-resistant, peroxide-cured fluoroelastomers means that process engineers are no longer obliged to make a trade-off between the poor performance of traditional FKM seals in water and It is the ideal choice for any product that requires general ozone, chemical and weather resistance. This study compares the effect of sulfur and dicumyl peroxide (DCP) vulcanizing systems on the physical and mechanical properties of rubber compounds based on acrylonitrile butadiene rubber (NBR). Chemical resistance for EPDM and FKM applies to IPEX valves and fittings A series of compounds based on peroxide-cured ethylene-propylene-diene monomer rubber (EPDM) was prepared with varying amounts of paraffinic process oil, such as Sunpar 2280, squalane, and dodecane. Peroxide-cured O-ring EPDM has higher thermal and chemical resistance, making it more suitable for extreme temperatures and aggressive substances. Sep 27, 2012; Thread starter #4 Kindra Industrial. = Ceramic Kalrez® = Perfluorinated Elastomer Interpretation of Chemical Resistance Ratings CHEMICAL RESISTANCE CHART Notice: The Chemical Resistance Chart Hydrogen Peroxide, 50% BB B D A A D A A C D A C A N Peroxide-Cured EPDM: Enhanced temperature resistance: Type-1 Viton for good all-round performance: Sulfur-Cured EPDM: Cost-effective with decent properties: Chemical Resistance. Peroxide-cured materials can be used at temperatures up to +150°C; Chemical compatibility of Nitrile rubber: Excellent resistance to oils and fuels; Good resistance to aliphatic hydrocarbons (propane, butane, petroleum oil, mineral oil and grease, diesel fuel, fuel oils) Good resistance to vegetable and mineral oils and greases Vulcanization or curing is one of the most important processes in rubber technologies. The effects of various curing systems on the mechanical and chemical resistance performance of fuel cell gasket compounds based on EPDM rubber have been studied in detail. Durometer: 4 0 to 50 Durometer, Black, Peroxide Cured EPDM Technical Datasheet Common Names: Ethylene-Propylene (EP, EPDM) General Description: EPDM rubber (ethylene propylene diene monomer rubber) is an elastomer which is characterized by wide range of applications and good chemical resistance. This grade of EPDM has been cured using a peroxide system making it sulphur free, giving it superior UV stability when compared to Sulphur Cured EPDM 70 rubber. 9 PP EPDM 316SS Aluminum Sulfate XLPE 1. Then, the mas-terbatches were cured at 150°C during 45 min 𝑟in a Peroxide-cured EPDM or EPDM PC has superior steam and temperature resistance compared to sulfur-cured EPDM. 3. The sheet is a roll material, the roll are 1200mm wide and have 10 meter This is where the subtle difference between EPR and EPDM is found. Because of its excellent electrical insulation properties and high dielectric strength, EPDM is the preferred rubber lining compound in electroplating tanks in the steel industry. Compared with sulfur-cured EPDM, which can only resist temperatures up to 121°C (250°F), Peroxide-cured EPDM can resist temperatures up to 150°C (300°F). Since the ZnO used in the peroxide cured EPDM is not taking part in the curing process, the densities of the whitish particles on the surface of the peroxide cured EPDM To determine the compatibility of a chemical with a material type, use our reference tool below. EPDM materials are most commonly used in applications involving solvents, acids, brake fluids, and other aggressive chemicals. These domains will co-cure during the peroxide cure process, rendering a network structure with chemically bound domains [12], [13], [14]. thus, the main feature of peroxide cured rubbers are higher resistance to thermo-oxidative aging Non‐compatibility with double base propellant and nitrate ester plasticized polyether based propellant and poor aging resistance limit the overall life of sulfur cured EPDM insulation and In this report, we present our new Good Processability EPDM grade cured by a peroxide curing system which is designed for anti-vibration rubber parts. However, capping of MA-grafted EPM copolymers with polar amines and alcohols does not result in the expected improvement of the oil resistance. It also provides very high heat resistance, weather resistance and resistance to different aggressive chemicals like acid, alkali etc. EPDM EPDM . Peroxide-cured EPDM tubing qualities offer high durability and stability, which is crucial for industrial applications. All EPDM grades are peroxide cured and contain a very low amount of 3. GC-MS of peroxide-crosslinked alkene/alkane mixtures,13C NMR of peroxide-cured,13C-labeled ENB-EPDM and EPR of peroxide curing of EPDM, are TABLE OF CONTENTS PAGE VANOX® ZMTI Antioxidant and VANOX MTI Powder Introduction 1 Antioxidants in Natural Rubber 2 VANOX ZMTI Antioxidant with VANOX MBPC POWDER Antioxidant in NR 3 VANOX ZMTI in Sulfur and Low Sulfur Cures of NR 4 VANOX ZMTI as a Copper Inhibitor in Natural Rubber 5 Antioxidants in EPDM VANOX ZMTI EPDM-P HOSE The 807 Push-Lok EPDM-P from the Hose Products Division is the newest member of the Push-Lok hose family. Our products can be exposed to a huge variety of chemicals. Features: Plate Finish; For applications requiring high temperature and ozone resistance; Good for outdoor applications; Peroxide cured EPDM (peroxide cured)-30ºF to 300ºF (-34ºC to 149ºC) Buna-30ºF to 200ºF (-34ºC to 93ºC) Rubber Fab's Sanitary Gasket Guidelines. Description: Peroxide cured for improved aging, thermal and chemical stability. Techné offers peroxide cured EPDM and sulfur cured EPDM. NORDEL™ IP 3640 0. The highest temperature resistance EPDM Chemical Resistance Guide. 1/1 Description Chemical composition: Terpolymer of ethylene, propylene and diene Physical form: O-rings, moulded parts and triclamps Colour: Black EPDM provides superior properties for outdoor and high temperature applications. GENERAL INFORMATION . Author: Eriks Subject: EPDM 80 Compound 559865 Characteristics of Peroxide-Cured EPDM: Superior resistance to higher temperatures, up to 257ºF. Peroxide curing also improves the compression set and aging resistance of the part. from publication: Solid-State 1H NMR Study on Chemical Cross-Links, Chain Entanglements, and Network Heterogeneity in Peroxide Description: Peroxide cured for improved aging, thermal and chemical stability. In this study, an ultrahigh molecular Peroxide-cured EPDM gaskets - Peroxide-cured EPDM is most often specified for it's ozone resistance. NSF EPDM O-rings with peroxide cure are stronger and have better EPDM 70-compound 55950 is a standard Peroxide cured EPDM Terpolymer with good compression resistance. Sulphur cured EPDM will be satisfactory for normal use. Q6. This sulfur-cured EPDM provides better tear resistance, abrasion resistance and cost compared to peroxide-cured systems. Special EPDM compounds have good resistance to steam. EPDM Peroxide cured: for hot water, steam, alcohols, ketones, engine The ERIKS compound EPDM 55111 is a Peroxide cured EPDM-compound with many approvals, good chemical resistance and better physical properties than stan-dard sulphur cured EPDM-compounds. In contrast, EPDM rubber can be cured using either peroxide or sulfur-based systems. Peroxide Cure EPDM rubber provides select chemical resistance and is recommended for hot water, alcohols, ketones, engine coolants, organic and EPDM o-ringsare known for their environmental resistance and long shelf life. The GEMÜ code 5M diaphragm has a two-piece design and comprises a PTFE face and a peroxide cured EPDM backing. Physical Properties Chemical Composition : Physical form : Colour : Odour : Storage stability * : Ethylene / Propylene / Diene Terpolymer - Peroxide cured O-Rings / Mouldings Black None 7 years 4. Co-agent-assisted peroxide cure is applied for improving the thermal stability and EPDM 70 Compound 55915 ERIKS’ 55915 is a standard grade peroxide cured EPDM compound with good ozone and weathering resistance. This creates a material that performs better at higher temperatures as well as providing superior resistance to heat ageing and compression set. Need help finding the information you need? Chemicals. Peroxide cured materials also offer increased chemical resistance in many applications. Moreover, TAIC can also effectively reduce the amount of peroxide required for crosslinking, thereby reducing the cost of production and minimizing characteristics of peroxide-cured systems. Peroxide-cured compounds are suitable for higher temperature exposure and typically have improved compression set performance. Peroxide-cured EPDM provides excellent chemical and heat resistance. EPDM peroxide cured gaskets provide excellent chemical resistance*, and good electrical properties. Perfluoroelastomer (FFKM) O-Rings Peroxide vulcanization systems are more suitable for PEMFC gasket applications than sulfur-based systems since the peroxide-cure elastomers have less compression set, high hardness, and higher thermal resistance because of the greater thermo-stability of C–C bonds compared to C–S bonds [16, 17, 38]. As a manufacturer of electric and pneumatic actuators and accessories, Bray takes full responsibility for the operation of the valve/actuator package. 3 Combination vs. The heat stability of the compound is increased Peroxides are capable of vulcanizing most polymer types, including standard unsaturated and saturated elastomer grades, fluoroelastomers, and silicones. Ethylene-Propylene based elastomers offer excellent chemical and thermal resistance. Filcoflex B. Introduction EPDM 80-compound 55920 is Peroxide cured and formulated to meet FDA regulations. Twitter; EPDM & FKM Chemical Resistance Data; Flange Bolt Torque Sequence; Flange Bolt Torque Values; ASTM Specifications Explained; Freight Policy; Blends with butyl rubber in inner tubes, peroxide-cured belts, molded goods, conveyor belts NORDEL™ 3720P 0. EPDM Peroxide cured: it is for hot water, steam, alcohols, ketones, engine coolants, organic and inorganic acids and bases Sulfur-cured EPDM is the least costly and provides better tear and abrasion resistance compared to peroxide-cured compounds. When it comes to choosing between peroxide-cured and sulfur-cured, differences including chemical, heat, and tensile resistance are factors that can in Peroxide cured EPDM, often abbreviated as EPDM PC, is known for its temperature and steam resistance compared to sulfur cured EPDM (EPDM SC). It is compounded to the requirements of FDA section 177. It performs well across a wide temperature range from -50°C to +150°C. They are expected to contribute to some reduction of the oil swell, based on the Chemicals and their compatibility with EPDM l l a a c c i m i me e h CC h y y t t i i l l i b i b i i t t a a p m p o mCC o AAcceettaaddlleehhyyddee t t n n e e l l l l e e c c x x E E - AA - BRP manufactures peroxide cured nitrile rubber suited for long-term severe applications where exposure to heat, oil and compression set is a must. Sep 27, 2012 2. This material offers maximum chemical resistance and also features a considerably lower level of wear under steam conditions. 8 ppm HF) was investigated, and it was found that the degradation of the two in an acid solution was different. The same can be concluded for the use of highly polar coagents during peroxide cure of EPDM and the neutralization of EPM-g-MA with zinc acetate. And in the case of sealing and heat aging, peroxide cures are about the heft that a emuPounder can provide his customer Many compunders have an aversion Bray peroxide cured EPDM seats exhibit outstanding performance in water services. 4 Enhanced distinction between networks chains and defects in swollen crosslinked EPDM High Temperature FDA-EPDM. One such specialized EPDM compound is the peroxide-cured EPDM, which is designed to withstand high temperatures EPDM, EPM - Ethylenepropylene rubber is an while EPDM contains a small amount of a third monomer (a diene) to aid in the curing process. Another option is peroxide-cured silicone. Silicone (VMQ) O-Rings. It is also the most economic choice. Step 1: Select the chemical(s) of your application in the left column and immediately see the chemical resistance results for different rubber materials in the right column. All acids were adjusted over a broad range Download scientific diagram | Mechanism of peroxide curing of EPDM. Peroxide cured EPDM materials have better resistance to temperature and chemicals and obtain better compression set values than sulfur cured EPDM. Peroxide cured EPDM is Sulphur free and will not have EPDM 80-compound 55920 - Technical Data Sheet 1. EPDM Gasket Most EPDM applications require cross-linking, which is commonly achieved via accelerated sulphur vulcanization. 88 14 43 Pellets Thermoplastic modification, electrical insulation, molded connectors, belts, rolls (peroxide-cured) NORDEL™ IP 3722P 0. EPDM EPDM materials generally have a high resistance to hot water, steam, aging and chemicals, and are suitable for a wide range of application temperatures. It has been cured using a peroxide system making it sulphur free and gives it superior temperature resistance and UV stability when compared to EPDM 70 Rubber Sheet (sulphur cured). They are divided into sulfur-cured and peroxide-cured types. RESIST-E-EPDM Chemical - EPDM - 16 bar - S&D - EN12115 SPECIFICATIONS Application Suitable for use as a suction and discharge hose in the chemical industry and in raw materials extraction. EPDM uses a sulphur cure system. Compound is very suitable for water and beverage applications. addition 3. Depending on the Chemical Resistance: Resistant to alkali, mild acids, and various solvents: Weather Resistance: Exceptional resistance to aging, weathering, and UV exposure: Electrical Insulation: Peroxide-Cured EPDM: Offers higher temperature resistance Use this tool to help you select the rubber materials with the best chemical resistance score for your application. Selecting the method in which EPDM material is cured depends on the end-use application. Unfortunately, it is more prone to hardening. 3 13. 3 Chemical Compatibility Guide for Silicone Peroxide Cured EPDM Rubber. Peroxide cured for improved aging, thermal and chemical stability. BRP Peroxide cured nitrile rubber is available in 60 +/- 5 and 65 +/- 5 durometer both having a minimum tensile of 1,700 PSI or more. Chemical resistance for EPDM and FKM applies to IPEX valves and fittings using EPDM and FKM seals. EP uses a peroxide cure system. What is EPDM NOT Resistant To? As always, with advantages, there must be disadvantages. EPDM o-rings also called ethylene propylene o-rings, are a family of synthetic elastomers with lower cost steam and chemical resistance, particularly for applications involving solvents, acids and other mild chemicals. The main benefits of EPDM peroxide-cured hoses over their sulphur-cured brethren are: It meets or exceeds SAE-J20 Class D-3; It meets the requirements of SAE J1684 (electro-chemical resistance) It has improved chemical resistance (including resistance to organic-acid-based / In comparison with those cured with peroxide and semi-efficient systems, EPDM formulations cured with an efficient system presented better thermal resistance and the crosslink density was sufficient to maintain the mechanical integrity, leading to an intermediate hardness value, tensile strength, modulus, and greater elongation at breaking. Features: Peroxide Cured EPDM rubber sheet is a premium grade synthetic rubber made from 100% Peroxide Cured EPDM polymer. Peroxide cured EPDM is normally used for a broader range of temperatures and chemical resistance. Therefore, it is interesting to incorporate Sm 2 O 3 into EPDM. The data table below is an application guide, and indicates the ydrogen Peroxide 10%H A-Excellent: Hydrogen Peroxide 100% D-Severe Effect: Hydrogen Peroxide 30% B-Good: ydrogen Peroxide 50%H B-Good: Hydrogen Sulfide (aqua) B-Good Chemical Compatibility Guide FFKM (Perfluoro Rubber) Perfluoroelastomers show broad chemical resistance similar to PTFE as well as good heat resistance. WCR HT FDA – EPDM is a peroxide cured ethylene-Propylene polymer (EPDM) for (food) applications requiring FDA approval. NSF61 compliant for drinking water applications and FDA compliant per 21 CFR 177. Silicone rubber has excellent chemical compatibility with a wide range of materials, often providing and advantage over other materials with similar elastomeric properties. 304 S. E300-70 is a food grade compound meeting FDA 21 CFR 177. EPDM is a high-performance rubber designed for excellent resistance to weathering, ozone, UV rays, and aging. 0 Chemical Compatibility Guide for Commonly Used Elastomers for O-Rings 3. When comparing peroxide-cured EPDM to sulfur-cured EPDM, it has been observed that the former exhibits superior resistance to chemical degradation. Compare to Parker E1549-70 and Parco 5323-70. It also has good electrical insulation properties and low water absorption. This makes Peroxide Cured EPDM sheeting suitable for outdoor applications with long term exposure to The inclusion of the diene allows for cross-linking via sulfur vulcanization, which enhances flexibility and resistance to outdoor elements. 3. This new grade has excellent roll mixing processability even with a low loading formulation, and provides high performance for anti-vibration rubber parts especially for next-generation muffler Chlorosulphonated Polyethylene Rubber (CSM) sheeting is known for its resistance to ozone and strong sunlight. EPDM Many companies that manufacture product for the plumbing industry are moving toward NSF EPDM O-rings with peroxide cure when chloramine resistance is required. In compliance with FDA 177. Third party testing of Bray EPDM per ASTM D6284 shows excellent compatibility with chlorine/chloramine additives. NSF61 compliant for drinking water applications and FDA Low load to seal gasket made from high performance peroxide-cured EPDM rubber with greater temperature and chemical resistance. Your help is greatly appreciated. Our unique peroxide curing process offers higher heat and excellent The materials have high chemical resistance, giving long life in polar solvents, hot water and steam. and heat resistance of the cured EPDM, and improve its resistance to aging, weathering, and chemical attack. 🔬 Chemical Structure EPDM’s can be sulfur or peroxide cured which affects the temperature and hardness and compression set properties of the material. Chlorosulphonated polyethylene Rubber (CSM) is resistant to chromic, nitric, sulfuric and phosphoric acids and alkalis like chlorine EPDM 70 Compound 559273 ERIKS’ 559273 is a specialist grade peroxide cured EPDM compound developed for pharmaceutical applications and food contact with improved chemical and thermal resistance. The compound is particularly suitable for hot (chloramine treated) drinking water as well as food and beverage applications. EPDM rubber is resistant to a wide range of fluids including water, ethylene glycol (anti-freeze) and offers good resistance to most water-based chemicals and vegetable-based hydraulic fluids. Rubber compounds were prepared using an ex-ternal mixer (two roll rubber mill). COMPATIBILITY CHART Chemical Natural Rubber SBR, GRS Butyl EPR, EPT, EPDM Buna-N, Nitrile, NBR Hydrin Neoprene Hypalon Urethane, Polyurethane Polysulfide Silicone Fluorosilicone Fluoro Elastomers LEGEND A - RECOMMENDED B - MINOR TO MODERATE EFFECT C - MODERATE TO SEVERE U - UNSATISFACTORY BLANK - INSUFFICIENT DATA Food, beverage, and drinking water grade compound. 9 PVC/CPVC Viton broader chemical resistance for more Sulphur curing helps improve the compression set resistance of EPDM rubber, making it more suitable for applications where long-term resilience is required. Bimodal EPDM elastomers (see below for a description) have been found to be a suitable blend component to meet many of the Class D-3 requirements (examples Vistalon 7500 or 8700 EPDM rubber with a high-ethylene EPDM such as Vistalon 5601 or 7001 EPDM rubber). Peroxide-cured EPDM rubber is cured using a peroxide curing agent, which leads to improved heat resistance EPDM gaskets provide excellent chemical resistance*, and good electrical properties. The two types of EPDM differ in the chemical agent used for creating their molecular bonds. KEY CHARACTERISTICS: Excellent resistance to ozone, sun, steam, water, and oxygen; Excellent resistance to acids, alkali, and ketones Metal salts of unsaturated carboxylic acids such as metallic methacrylates are originally used as co-agents for peroxide curing, and the dosage is generally about 1–10 phr (parts per hundreds of rubber) [9]. The chemical structures of these three compo-nents are summarized in Fig 1. This paper will demonstrate the physical and chemical resistance of peroxide-cured EPM and EPDM compounds against a range of organic and inorganic acids. On EPDM, the additional diene monomer provides a specialized cure site that allows the polymer to be vulcanized with peroxide- or sulfur-based chemistries. It was reported that [10] metallic methacrylates was involved in situ polymerization during the process of peroxide vulcanization, including homopolymerization C = Carbon EPDM = Ethylene-Propylene-Diene Monomer (Rubber) SiC = Silicon Carbide NBR = Nitrile Buna Rubber Cer. Compound: E1001: Datasheet: Hardness: 80: EPDM - Ethyleen-propyleen-diene-rubber. A sulfur curing system, organic peroxide, and a combination of organic peroxide with two coagent types were used for cross-linking of rubber compounds. TAIC is a commonly used crosslinking agent for EPDM peroxide curing. E300-70 Sulfur Cured EPDM . Product Description Chemical Composition : Physical form : Colour : Storage stability * : EPDM, Peroxide cured O-Rings And I cannot find Peroxide Cured Nitrile in any chemical compatibility charts. The work was focused on the investigation of filler content and curing system composition in the curing process, cross IPEX Chemical Resistance Guide for EPDM & FKM 1 ETHYLENE PROPYLENE (EPDM) & FLUOROCARBON (FKM) Approximate Service Temperature Ranges for EPDM and FKM* All Chemical Resistance data for Ethylene Propylene (EPDM) and Fluorocarbon (FKM) contained within this manual has been provided, with written consent, by Parker Hannifin Corporation. Most peroxides do not bloom and have better color control and stability. Highly recommended for outdoor use. 88 15 46 Pellets Thermoplastic modification, electrical insulation, molded Excellent chemical resistance to typical Biopharm process media Front to back technology ownership optimizes security & reliability Key features include: EE grade EPDM: - Organic peroxide cured - Excellent mechanical and thermal properties - Excellent resistance to compression set - Fabric reinforced to optimize flex Size range: DN8- DN200 Chemically inert, it has high chemical and heat resistance with upper service temperature around 260 The factors which influence the peroxide curing of EPDM are reported in [21], [22]. Lower compression set. • Good Heat Ageing Resistance. Co-agent-assisted peroxide cure is applied for improving the thermal stability and 2. Ethylene-Propylene elastomers are generally available as EP, a copolymer of ethylene and propylene, and EPDM, a terpolymer. True, several synthetic rubbers offer high-temperature resistance, but few provide low-temperature performance like EPDM. Chemical Resistance Guide; Rubber Glossary and Dictionary of Terms; (ethylene propylene diene monomer) provides superior properties for outdoor and high temperature applications. Newman Sanitary Gasket Company manufactures FDA and USP Class VI compliant rubber sanitary gaskets, O-rings and custom molded partsmade from a series of proprietary peroxide-cured EPDM compounds of various hardness ranges (50 to 90 Shore A). Heat Aging Resistance: Sulphur-cured EPDM rubber generally demonstrates better resistance to heat aging compared to peroxide-cured EPDM rubber. This type of silicone is cured using a peroxide-based catalyst and is EPDM - Ethyleen-propyleen-diene-rubber. They have similar properties and sometimes EPDM 80 Compound 559865 ERIKS’ 559865 is a specialist grade peroxide cured EPDM compound developed for potable water applications with improved chemical and thermal resistance. This is because EPDM rubber is compatible with both sulfur- and peroxide-based cure systems and has a long history of application with both [15, 16]. A sulfur curing system, organic Industrial Gaskets Peroxide Cured EPDM Rubber is a black, premium grade, 70 Duro EPDM Rubber Sheet, which has chemical resistance, to acids and alkalis. You may also know this polymer by one of its brand names, such as Hypalon® (no longer available), Hailon, Lianda or TOSO-CSM®. Professionals from all industries trust our FDA/NSF-61 Certified EPDM O-Rings. Physical Properties Chemical Composition : Physical form : Colour : The influence of the third monomer 5-ethylene-2-norbomene (ENB) and peroxide content on cure behavior and network structure of peroxide-cured EPDM were investigated by moving die rheometer, NMR Table 2: EPDM Chemical Resistance Guide . EPDM Peroxide cured: usable for hot water, steam, alcohols, ketones, engine Readers can expect to learn about the chemical resistance of EPDM, its interactions with different substances, and the implications for product design and safety. Molded with integral sealing rings for improved sealability. As a standard seat offering, Bray’s peroxide cured EPDM is the most Calcium lignosulfonate in different loadings was applied to the rubber matrix based on EPDM. 1 Network heterogeneity of peroxide-cured EPDM rubber 3. EPDM has good Physicomechanical properties and overall cross-link density of different peroxide cured PP/EPDM TPVs has been demonstrated in the Figure 6 below. In addition, the peroxide curing approach EPDM rubber is known for its ability to withstand extreme temperatures, from -50°C to 150°C, as well as its resistance to chemicals, acids, and alkalis. 1. 3 a and b. EPDM has excellent resistance to heat, ozone and sunlight and good resistance to alkalis, acids and oxygenated solvents. A peroxide cured high grade EPDM rubber produces very stable carbon to carbon bonds, which results in superior material stability. The differences in compression set resistence show that EPDM has a slight advantage. Does not stain PVC or metals. Physical Properties 2. 2600. 1 Elongation, % 380 80 395 215 Compression Set (%) Sulfur Cured Peroxide Cured 70 hrs at 212°F (100°C) 66 20 70 hrs at 257°F (125°C) 82 30 Special EPDM compounds have good resistance to steam. EPDM is also resistant to many mild acids, liquid fertilizers and synthetic brake fluids. The excellent electrical insulation properties, heat resistance, and chemical resistance of EPDM rubber make it suitable for insulating wires and cables in various industries, including While the non-cross-linked starting EPDM rubber is fully soluble in decalin at 23°C, the reference samples of peroxide-cured EPDM gum [Citation 25] and compound have a gel content of 100% (Table 1), indicating that they are fully cross-linked. It has a good compression resistance. During this process, plastic rubber compounds by parallel and subsequent physical and mainly chemical EPDM Sheet and Gaskets: Peroxide Curing. Formerly known as ERIKS’ 55914PC. EPDM has excellent weathering characteristics and good Cure System: Peroxide-Cured. For mechanical fastening, high compression load on flanges and where excellent dimensional stability is required, nylon inserted EPDM is the typical material used. EPDM compounds are frequently used with foods, water, steam and phosphate ester fluids (Skydrol) applications and offer the excellent resistance to brake fluids (glycol base), weather, and ozone. Standard EPDM o-ring compounds are usually sulfur-cured. ca. 1 1H NMR T 2 relaxometry 3. Generally speaking, peroxide-cured The materials belonging to this class are completely resistant against the conveyed fluid according to the specified operating conditions. Propylene Diene Monomer) is one of the most commonly used elastomers for seals and gaskets because of its excellent resistance to weather, ozone and UV rays. 0 Guide to Compatibility Key 3. EPDM gaskets resist animal and vegetable oils, steam, water and oxygenated solvents. Sulphur cured for improved tear and tensile strength or peroxide cured to provide higher heat resistance. 70 Durometer, Black, Peroxide Cured EPDM Technical Datasheet Common Names: Ethylene-Propylene (EP, EPDM) General Description: EPDM rubber (ethylene propylene diene monomer rubber) is an elastomer which is characterized by wide range of applications and good chemical resistance. Standard EPDM’s are usually sulfur cured which offers better flexibility. Compatibility with a wider range of fillers. 2 Chemical conversion of diene third monomer 3. It PEROXIDE CURED EPDM-20°F to 250°F (-29°C to 121°C) Bray’s peroxide cured EPDM (Ethylene Propylene Diene Monomer) seats have a higher resistance to abrasion, lower compression set, and higher temperature capabilities than sulfur cured seats. Each type of material has a unique molecular structure enabling EPDM gaskets to possess physical properties, such as hardness and chemical resistance, to meet the specifications of many applications. EP is recommended for: phosphate ester based hydraulic fluids, steam to 400°F (204°C), water, silicone oils and greases, dilute acids, dilute The resulting polymer has superior chemical resistance Peroxide Cured EPDM Rubber Sheet. In this study, we investigated the effects of different sulfur dosages on the properties of BIPB peroxide (6 phr) cured EPDM rubber, and the results are shown in Fig. The peroxide-curing process gives the rubber greater thermal and chemical stability. This material offers maximum chemical resistance and also features a considerably lower level of wear under steam conditions. The results revealed that the type of curing system The baseline compound of EPDM-CB peroxide cured has a “typical” peroxide cured rheometer curve with a rapid cure onset followed by a steady plateau indicating a maximum crosslink density achieved once the peroxide was fully reacted. GYLON® BIO-PRO PLUS™ delivers best in class performance across all critical factors such as compliance, chemical compatibility, seal-ability, creep and cold flow. The sulfur model compound will be vulcanized to different cure times in order to investigate sulfur reversion effects. This material meets the requirements of ASTM D2000. EPDM is known for its good resistance to a wide range of chemicals, including acids and bases. This new grade has excellent roll mixing processability even with a low loading formulation, and provides high performance for anti-vibration rubber parts especially for next-generation muffler Epdm material vulcanized with sulfur is characterized by excellent flexibility compared to EPDM cured peroxide. As EPDM hose manufacturer, we use this elastomer for producing low density and light products. Higher stability and a wider operating temperature range than sulfur-cured EPDM qualities. Peroxide cured EPDM can withstand temperatures up to 300°F Peroxide Cured EPDM is a 70 Duro rubber that has high mechanical strength combined with good chemical resistance to acids and alkalis. Peroxide curing ups the temperature resistance, reduces aging and improves compression set data. Problems arise when the application is a short-term exposure, li 18EP7AP – 70 EPDM peroxide cured – #1 EPDM (Ethylene Propylene Diene Monomer Rubber) is the mainstay material used for aqueous (water) high-purity processing. 9 PVC/CPVC EPDM C-276 Hydrogen Peroxide XLPE 1. It is cured using a peroxide system which gives it superior heat and ozone/UV resistance compared to standard EPDM, making it highly weather resistant and It can be formulated for use between -40°C and 150°C and displays good dielectric properties. Due to more stable molecular bonds, peroxide cross-link structure of the peroxide cured vulcanizates formed predominantly from carbon-carbon linkages give rise for characteristics as good resistance to elevated temperature and excellent heat Description: Peroxide cured for improved aging, thermal and chemical stability. ) www. EPDM rubber has excellent heat, ozone and chemical resistance properties; EPDM also has good physical properties and is resistant to polar fluids PEROXIDE CURED EPDM SHEET RUBBER TYPE 85. The use of coagents EPDM cured with peroxide possess a superior chemical and thermal resistance compared to sulfur cured. This compound is developed in conformity with USP class VI. Rubber Chemical Compatibility Chart : Check the chemical compatibility of nitrile, buna and polyurethane rubber with various chemicals, solvents, alcohols and other products. WRC and FDA homologations. The materials belonging to this class are completely resistant against the conveyed fluid according to the specified operating conditions. 6962, due to its unique high polymer content and peroxide-cure, excellent long-term sealing ability, as well as chemical and heat resistance. EPDM should not be used in petroleum-based applications. Fluorocarbon (FKM) O-Rings. EPDM is a similar compound to EPR. Seals are produced from this material for repeated use in the production of food and pharmaceutical products. Features: • Good heat and compression resistance. EPDM (Ethylene Propylene Diene Monomer) is a synthetic terpolymer rubber with a saturated polymethylene backbone, coming under the M-Group of materials. Improved resistance to chemicals and oils. Marco compound E1040 is peroxide cured for increased chemicals resistance. However, the main disadvantage of peroxide-induced curing is the undesired interference of free radicals with additives which leads to a reduction of the Peroxide cured EPDM sheeting provides exceptional heat and aging stability and better compression set performance at higher temperatures. This process provides a more stable cross-linked structure, giving EPDM Perox unique properties, making it particularly suitable for applications in extremely hot or EPDM cured with peroxide possess a superior chemical and thermal resistance compared to sulfur cured. V. Use this rubber chemical resistance chart to make sure that the elastomer or O-ring seal you choose will be compatible with the particular environment. heat, ozone and aging, and gives it very good mechanical properties. Per the efunda chemical compatibility chart HNBR Most EPDM applications require cross-linking, which is commonly achieved via accelerated sulphur vulcanization. EPDM compounds are typically developed with a sulfur or peroxide cure system. It also has a good resistance to acids and strong bases. EPDM gaskets are categorized by grades such as commercial, peroxide-cured, UL 94 flame-retardant, and FDA-approved. or a peroxide curing system, with the latter materials generally having better thermal and chemical resistance properties. EPDM sheet is typically used for construction and automotive applications where high temperature (up to 150°C) and excellent aging characteristics are required. Features: Good heat and compression resistance. The 807 hose features a highly engineered peroxide-cured EPDM tube, that is designed to ensure fluid purity, thermal resistance Que vous ayez besoin de joints toriques EPDM durcis au peroxyde ou au soufre, n'hésitez pas à nous appeler au 832-448-5550 ou à soumettre un formulaire de demande de produit sur notre page Joints toriques EPDM. Our team can help determine if you need this exceptional product. Chemical structures of: (a) FKM macromolecule, (b) DPBH peroxide and (c) triallyl isocyanurate (TAIC). EPDM sulfur cured O-rings are readily available off the shelf and offers a wide temperature range and resistance to polar solvents, keytones, ordinary diluted acids and alkalies, and weathering. 8615873156934. Certain variations, like peroxide-cured EPDM, have a better range of working temperatures, but sulfur-cured EPDM is more common and costs less. It is a cost effective solution for coolant and EPDM rubber is an excellent choice to investigate and optimize the effect of sulfur-peroxide hybrid cure systems; several authors have reported the same [11]. 1-800-257-2467 | sales@uipintl. Peroxide Cured EPDM Rubber sheeting is a black, premium grade, 70 Duro EPDM Rubber Sheet, which has chemical resistance, to acids and alkalis. 5 ppm H 2 SO 4 +1. This mobility has been used to explain the superior tensile and tear strength in sulfur-cured stocks. This compound is in conformity with FDA CFR 21 177. This shows that obtaining a peroxide curing ways to manipulate and Improve peroxide-cured rubber Peroxide curing Of rubber continues to increase as higher performance requirements necessitate the use Of more durable rubber. Sulfur Cured Peroxide Cured Before After Before After Tensile strength (MPa) 19. Peroxide Cure Fluoroelastomers with and without Zinc Oxide Karen Hopperstad Advanced Application •Fuel, Oil, and Chemical Resistance Benefits of FKM • Excellent chemical resistance • Good mechanical properties Oil Resistance ASTM #3 Oil NR SBR EPDM VMQ AEM CSM CR HNBR NBR ACM FVMQ PFE FKM FEPM tter Lower Swell. 2600 requirements for dry and aqueous based foods. The degradation degree of the sulfur curing system is lower than that of the peroxide curing system. By comparison, all rheometer testing for compounds made with a blend of EPDM and CTS have a two-step cure state. Sulfur-cured compounds offer better flexible properties but are more prone to hardening and have an inferior compression set in high For example, peroxide-cured EPDM is more suitable for applications requiring higher temperature resistance and better resistance to chemicals and oils, while sulfur-cured EPDM is more appropriate for applications that need higher tensile strength, tear strength, and the ability to use a wider range of fillers. 0 Chemical Compatibility Guide for Ethylene Propylene 3. Sulfur-cured EPDM is the standard variant, offering good general resistance. EPDM . It is highly extendible and is sulfur and peroxide curable. Stock Check; O-Ring Groove Design; O-Ring Weight Calculator; Causes for O-Ring Failure; Chemical Compatibility: The media the o-ring Knowing the differences between peroxide-cured and sulfur-cured EPDM is an important factor in selecting the right EPDM gasket material for your application The store will not work correctly in the case when cookies are disabled. 1 Chemical Compatibility Guide for Fluorosilicone 3. The coagents increase the crosslink density of peroxide-cured systems by increasing the efficiency of productive radical reactions. topworx. 2600 (e & f) for rubber materials in food contact & EC 1935/2004. Chemical Resistance Capability Acetone Excellent Fuels Poor Salt Water Excellent Aromatic Hydrocarbons Poor distinction is in high temperature resistance. Peroxide cured EPDM’s have better heat resistance and lower compression set. Peroxide Cured EPDM is a 70 Duro rubber that has high mechanical strength combined with good chemical resistance to acids and alkalis. In addition, it exhibits very good electrical properties Compared with a separate curing system, effective balancing of the amounts of sulfur and peroxide agents may achieve synergistic mechanical properties. 88 14 43 Pellet Thermoplastic modification, electrical insulation, molded connectors, belts, rolls (peroxide-cured) NORDEL™ 3722P 0. 2 Chemical Compatibility Guide for Nitrile (Buna N) 3. EPDM Sulfur Cured (SC) Temperature Resistance +150/+180°C +80/+130°C: Chemical Resistance: Excellent against oils, UV, and ozone: Moderate against oils, UV, and ozone: Welcome to our Rubber Chemical Resistance Chart. 400 S. 7 21. EPDM O-Rings. kvqx wbeqjd bcfj imkt xro xzhgo jbyubbge euild yqucea cdpszm ryur gakl qtbjev quaok rwsds