Gray Epichlorohydrin Rubber (ECH / ECO) retains all of the properties of the standard black epichlorohydrin rubber (ECH / ECO), with the exception of its distinguishable light gray color. It’s a cost-effective polymer that bridges the gap between nitrile and considerably more expensive polymers.
Gray epichlorohydrin rubber (ECH / ECO) provides superior strength against tears and resistance. Among its many beneficial properties include good resistance to bio-fuel and abrasion.
Gray Epichlorohydrin rubber (ECH / ECO) has low gas permeability and better low temperature flexibility than Nitrile (NBR). It exhibits excellent resistance to acids, alkalis and ozone exposure. Typical working temperatures range from -35°C to +125°C.
Peroxide Cure EPDM rubber offers many of the same great properties of premium grade EPDM rubber, with enhanced temperature and compression set qualities. Peroxide Cure EPDM rubber also offers resistance to steam, and is the premium choice for applications subject to weathering.
Peroxide Cure EPDM rubber provides select chemical resistance and is recommended for hot water, alcohols, ketones, engine coolants, organic and inorganic acids and bases. Premium grade EPDM rubber is not resistant to mineral oils, greases and fuels. Depending on the application, EPDM rubber can be cured with sulphur or peroxide.
Epichlorohydrin rubber (ECH / ECO) has properties similar to nitrile rubber but with better heat, oil and petrol resistance. It’s a superior grade, multipurpose polymer that’s used extensively in fuel applications such as automotive fuel systems, bladders and die-cut sealing. It exhibits excellent resistance to acids, alkalis and ozone exposure. Typical working temperatures range from -35°C to +125°C.
Epichlorohydrin Rubber (ECH / ECO) has gained popularity over the years in severe applications like arctic refueling hose tubes and other sealing conditions requiring low temperature flexibility. Epichlorohydrin rubber (ECH / ECO) has low gas permeability and better low temperature flexibility than Nitrile (NBR).
Among its many beneficial properties, Epichlorohydrin Rubber (ECH / ECO) also offers good resistance to bio-fuel and abrasion and provides superior strength against tears and resistance. However, its poor compression set limits its use as a sealing material. It’s important to note that Epichlorohydrin Rubber (ECH / ECO) can have a corrosive effect on select metals, which can increase tooling costs and limit metal bonding applications.
FKM Viton® rubber, also known as Fluorocarbon rubber, is known for its excellent oil and air resistance properties. FKM Viton rubber has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals. Extreme temperature and nearly legendary oil and fuel resistance makes FKM Viton rubber the choice for some of the toughest applications.
Depending on the grade, FKM Viton® rubber can operate continuously in excess of 200°C / 392 F° with intermittent spikes as high as 300°C / 570°F. Proper selection and compounding can provide low temperature resistance as well. It also possesses low gas permeability, low compression set and good mechanical properties.
FKM Viton® rubber is commonly used in aircraft engines, automotive fuel handling systems and high chemical exposure applications. FKM Viton® rubber is typically good with most chemicals and acids, but it’s good practice to check your Chemical Resistance Guide.
FKM Viton® rubber is attacked by amines, strong alkalis and many Freon’s. It also has limited resistance to steam, hot water, methanol, ketones, low molecular weight esters and nitro containing compounds like Skydrol, synthetic hydraulic fluids, certain esters and ethers.
You may occasionally see the following names from major polymer manufacturers: Dai-El®, Fluorel®, Technoflon®, Viton®
Premium grade EPDM rubber is the best water resistant rubber on the market. BRP manufactures premium grade EPDM rubber that is highly UV, ozone and weather resistant. Premium grade EPDM rubber also provides exceptional resistance to most water-based chemicals and vegetable-based oils.
All premium grade EPDM rubber produced by BRP conform to the standards set forth by ASTM D2000, SAE J200 and Mil-R-3065 for applications in the automotive, military, and aerospace industries. Intended uses for EPDM rubber include less critical applications where temperatures are of an intermittent nature.