Silica gel has excellent heat resistance, low temperature elasticity, and excellent oxidation and ozone resistance.Good electrical insulation (volume resistance greater than 10 ohms, cm, breakdown voltage above 30kv/mm), corona resistance and arc resistance.However, proper electrical conductivity can be obtained by adding conductive carbon black, nickel powder, aluminum powder and silver powder (the volume resistance can be up to 5-0.02 ohm).The surface energy of the silica gel ring is low. It has hygroscopicity and ACTS as isolation.Water resistance, but poor water vapor resistance, not recommended for pressure above 50psi.Compatible with most oils, chemicals and solvents.Silicon rubber generally good acid and alkali resistance, resistance to polar solvent, non - resistant to alkyl hydrogen and aromatic oil products.It is not recommended to use in most concentrated solvents, oils, concentrated acids and dilute alkali solutions.Special silicone rubber also has radiation, fire resistance, oil resistance and other properties.It has low tensile strength, weak wear resistance and is generally not used for dynamic sealing.
Temperature range: - 50 ℃ ~ 150 ℃,
Hardness range: shaw 25 to 90 degrees.
Color: black, brown, green, white, reddish brown, yellow, blue, red, orange, transparent, grey, or designated by customer.