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Nitriles

Nitrile rubber, also known as NBR or Buna N, is one of the most commonly used sealing elastomers due to its resistance to petroleum based fuels and lubricants and its relatively low price. Nitrile elastomers are copolymers of acrylonitrile and butadiene. Our most popular Nitrile material would be HNBR, which we carry in three alternative durometers. 

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Fluoroelastomers (FKM, Viton®)

Also referred to as fluorocarbon, this compound is a thermoset elastomer containing fluorine. Fluoroelastomers are a well- known high performance rubber, possessing excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals.

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Perfluoroelastomers (FFKM, Simriz®)

Simriz is a family of perfluoroelastomer compounds developed solely by Simrit and designed to provide superior chemical resistance and thermal stability. Simriz possesses the resilience of an elastomer with chemical resistance approaching that of PTFE.

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Ethylene Propylene diene monomer (EPDM)

EPDM is a Copolymer of ethylene and propylene, and further a terpolymer of ethylene and propylene with a small amount of a third monomer (usually a diolefin) to permit vulcanization with sulfur. Generally Ethylene Propylene Rubber possesses excellent resistance to ozone, sunlight and weathering, and has very good flexibility at low temperature, good chemical resistance (many dilute acids and alkalis, polar solvents), and good electrical insulation property.

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Fluorosilicone (FVMQ)

Fluorosilicone is like silicone rubber, bonding trifluoropropyl, methyl, and vinyl as side chains. The mechanical and physical properties are similar to Silicone (VMQ). However, FVMQ offers improved fuel and mineral oil resistance, but poorer hot air resistance then your standard Silicone (VMQ).

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Silicone (VMQ)

Physically, silicones are based on silicon, an element derived from quartz. To create this class of synthetic elastomers, pendant organic groups such as methyl, phenyl and vinyl are attached to silicon atoms. The different addition of side chains can achieve significant variations in properties. Silicones have excellent heat, ozone and corona resistance, very well dielectric stability, and resistance to many oils, chemicals, and solvents. And for all elastomers, silicones possess the best flexible property at low temperature. But it also has some weakness like low tensile strength, poor tear and wear resistance.

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