008 Viton / FKM O-ring 90A Shore Black, -1000 Pack Have excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, and aromatics; It is a co-polymer based compound that has a broad chemical resistance and good compression set values..
.Brown Viton O-rings has excellent resistance to aging, ozone, temperature, boric and citric acids, ketones, hydrocarbons, and animal and vegetable oils, greases, aliphatic, aromatic and chlorinated hydrocarbons, non-flammable hydraulic fluids (HFD) and many organic solvents and chemicals.
Silicone is vulnerable to mechanical wear and tear, water and steam over 250 degrees F (121 degrees C), aromatic hydrocarbons (benzene), chlorinated hydrocarbons (trichloroethylene), acids and bases, and hydrocarbon fuels..
It is vulnerable to many oils, gasoline, and solvents.263 EPDM O-Ring 70A Shore Black, -250 Pack It is compatible for use with water and steam, silicone oil and grease, polar solvents (alcohols), acids, glycol-based brake fluids, ozone, and weathering..