natural rubber is a polymer of isoprene, and is prepared as sheets and then dried. Synthetic rubbers or elastomers can be based on a variety of systems such as silicone, polyurethane or neoprene.

The petroleum base can attack the rubber, polymer or silicone-based seals of electric connectors and cause major problems with moisture and dust intrusion. NOTE: Silicone sealant is not the same ...