Silicone (VMQ)
Methyl vinyl silicone rubber with outstanding heat resistance and good cold flexibility. Good electrical properties. Generally poor chemical resistance. Often used in cryogenics.
Typical temperature range from -60 ºC to +250 ºC.
Ethylene propylene diene (EPDM)
Synthetic rubber with good resistance to hot water, steam, ketones, brake fluids and other products. Good electrical insulator. Strong incompatibility with lubricants, so it is not used as a seal material.
Typical temperature range from -35 ºC to +150 ºC.
Fluoroelastómero (FPM/FKM)
This material is popularly known as viton. It has good resistance to lubricants, fuels, acids and bases, among other products. Peroxide cured formulations improve its resistance to incompatible fluids such as alcohols and steam. Widely used as seals and O-rings, it is noted for its low gas permeability.
Typical temperature range from -20 ºC to +210 ºC.
CR (Cloropreno)
Este material se conoce popularmente como neopreno. Tiene buena resistencia a la intemperie, a los lubricantes y al amoníaco, entre otros productos. Buena resistencia a la abrasión.
Rango de temperatura más habitual desde -40 ºC hasta +100 ºC.
Acrylonitrile butadiene rubber (NBR)
Synthetic rubber with exceptional lubricant behaviour which makes it a first choice for seals and O-rings. Limited resistance to weathering and acids.
Typical temperature range from -30 ºC to +110 ºC.
CR (Cloropreno)
Este material se conoce popularmente como neopreno. Tiene buena resistencia a la intemperie, a los lubricantes y al amoníaco, entre otros productos. Buena resistencia a la abrasión.
Rango de temperatura más habitual desde -40 ºC hasta +100 ºC.