A copolymer of acrylonitrile and butadiene. Suitable for use with aromatic hydrocarbons, dilute acids and bases. Generally unsuitable for unsaturated halogen compounds, halogenated hydrocarbons (carbon tetrachloride, trichloroethylene) ketones (acetone), nitro compounds or strong acids. Temperature limits -50 to 120ºC. Density: 1.23
A copolymer of ethylene and propylene, the E.P. o-rings have good weather, ozone and chemical resistance. They are recommended for use with dilute acids and alkalies, detergents, ketones, phosphate ester base fluids, alcohols, glycols, high pressure steam and silicone oils. They are not recommended for use with hydrocarbon solvents and oils, chlorinated hydrocarbons, petroleum oils and bi-ester base lubricants. The normal temperature service range is -50ºC to 145ºC. Density: 0.86.
(9) The Kalrez® perfluoroelastomer is the most versatile of all the O-ring compounds. Like all fluorinated products, Kalrez should not be exposed to molten or gaseous alkali metals, such as sodium or potassium. Under elevated temperature, service life may be reduced with exposure to some diamines, nitric acid and basic phenols. Unlike PTFE, the Kalrez O-ring has properties of elasticity, recovery and no-creep or cold-flow that are necessary for many sealing applications. Its dependable long term service makes Kalrez the choice for avoiding costly seal failures, repairs and shut down time. Kalrez is chemically resistant to polar solvents, organic solvents, inorganic and organic acids and bases, fuels, oils, lubricants, inorganic salts, ...
(2) This O-ring copolymer is composed of tetrafluoroethylene/propylene and has excellent physical and mechanical properties. TFE/propylene o-rings are resistant to alcohols, acids, bases, oxidizing agents, oils, lubricants, and many solvents. They are not recommended for use with aromatics, non-polar solvents, ethers, ketones, Freon, acetic acid and some chlorinated solvents. The temperature service range is -45ºC to 204ºC with some short term use to 316ºC. Density: 1.68.
(7) This fluoroelastomeric rubber is a copolymer of hexafluoropropylene and 1,1-difluoroethylene. Viton® has excellent resistance to oils, fuels, lubricants, mineral acids, halogenated aromatic and aliphatic hydrocarbons such as carbon tetrachloride, toluene, benzene and xylene, non-polar compounds, oxidizing agents, and metalloid halides. Viton® is not recommended for basic and oxygenated solvents such as ketones, ethers, esters, and ammonia or hot anhydrous hydrofluoric, acetic, and chlorosulfuric acids. The normal temperature service range is from -23ºC to 204ºC. Viton® exhibits good mechanical, electrical, and weather resistant properties, as well as low gas permeability for use under extreme vacuum conditions. Density: 1.85.
