... silicone rubber, which enhanced the strength, fireproof, high temperature insulation ozone, oxygen, sun, weather and oil workability.Properties1. ... may be reached to 10 years. 3. High insulation: dielectric constant from 3 to 3.2, breakdown ... quilt, foundry splash protection. Conveyor belt and expansion joints. Electrical insulation, chemical corrosion resistance, packing material. Used for aerospace, ...