Silicone is one of the most versatile of “rubber” compounds. With its extreme temperature range (-80°F to 550°F), it exceeds all comparable materials in their insulating properties as well as flexibility in a wide range of electrical applications. It is non-conductive, maintains dielectric strength, and can be color matched to any Pantone/RAL. Silicone also has high tear and tensile strength, good elongation, great flexibility and a durometer range of 20 to 90 Shore A.
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Silicone rubber resists the deteriorating effects of sunlight, ozone, and gasses which cause weathering. Inherently water repellent (hydrophobic), silicone is not affected by moist operating conditions. Very dry conditions and low humidity will not leach, dry out, or affect silicone in any way. Silicone also resists the deteriorating effects of the agents found in rain water: nitrates, sulfates, chloride, and hydrogen ions. Surface water containing minerals, acids, bases, and salts from the soil normally have no detrimental effect on silicone.

It can be formulated to meet a far reaching range of specifications, such as FDA, NSF, Mass transit specs (SMP 800c), UL 94 V0, MIL & AMS specs and many more. There are a few caveats though. Silicones should not be used with concentrated acids, alkalines or solvents.