Products

Dynacast Industrial Products Chlorosulfonated Polyethylene Rubber - CSM has good heat, weather and ozone resistance with low gas permeability. CSM is used often for protective coatings.

Dynacast Industrial Products Fluoro-silicone Rubber - FVMQ has good high and low temperature resistance. FVMQ also has good oil, solvent and petrol resistance.

Dynacast Industrial Products Butyl Rubber - BUTYI has a very high impermeability to gasses and is used for the inner tubes of pneumatic tires, and in vacuum and high pressure applications. It has an unusually broad loss peak so that, despite having a glass transition temperature as low as -65C, it displays high damping at ambient temperatures. Butyl Rubber has good ozone, weathering, heat and chemical resistance. It is not suitable for use in contact with mineral oils. Butyl rubber has low resilience at ambient temperatures and is suitable for damping applications.

Dynacast Industrial Products Epichlorhydrin Rubber - CSM has good oil, low temperature resistance. ECO also has good resistance to hydrocarbon solvents combined with moderate low temperature flexibility, poor abrasion resistance and electrical properties.

Dynacast Industrial Products Fluorocarbon Rubber - FKM has high temperature resistance, good oil resistance, chemical products resistance and flame resistance. FKM's low temperature properties and elasticity are poor.

Dynacast Industrial Products Silicone Rubber - Q has good high and low temperature resistance and good electrical properties. The outstanding property of Silicone rubber is the very wide temperature range. Typically the range is -60C to 200C and above. Silicone rubber does not have very good physical properties, but the properties they do have are retained to high temperatures. Beware corrosion if acetic acid is present as a curing agent.

Dynacast Industrial Products Nitrile Rubber - NBR is copolymer of butadiene and acrylonitrile. With Nitrile rubbers, the oil resistance increases as the acrylonitrile content but at the expense of resilience. NBR has good oil and liquid fuel resistant and good gas barrier properties.

Dynacast Industrial Products Polyurethane Rubber - PU has good impact, abrasion, heat and chemical resistance with strong tensile strength. Polyurethane Rubber's upper temperature limit is typically 80C. They have excellent resistance to weathering and oxidation. They resist hydrocarbon fuels and mineral oils but some grades hydrolyse in hot water. They are one of the best rubbers for abrasion resistance and are therefore used in reciprocating seals. Some grades are castable.