POLYSILICONE-11- ▸ Seals and gaskets: Elastomer for seals, O-rings, and gaskets in demanding service temperatures.
- ▸ Molded parts: Compression- and injection-molded components and tubing.
- ▸ Electrical insulation: Insulating elastomer for cable, wire, and connector applications.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Silicone rubber (CAS 63394-02-5) is a polydimethylsiloxane-based elastomer supplied in primary form for compounding and molding. It is used to produce seals, gaskets, tubing, and molded parts that require flexibility and stability across a wide temperature range, and as an electrical insulating elastomer.
Frequently Asked Questions
What is silicone rubber used for?
Silicone rubber (CAS 63394-02-5) is a polydimethylsiloxane-based elastomer used to make seals, O-rings, and gaskets, compression- and injection-molded parts and tubing, and electrical insulation for cable, wire, and connectors. It is chosen where flexibility and stability are needed across a wide temperature range.
What is the difference between rubber and silicone rubber?
Conventional rubber is carbon-based (natural or synthetic organic elastomer), while silicone rubber has an inorganic siloxane (Si-O-Si) backbone. The siloxane backbone gives silicone rubber a broader service-temperature range and better stability, which is why it is specified for demanding seal and insulation duty.
Is silicone a plastic or a rubber?
In this elastomer form it behaves as a rubber: a flexible, elastic polydimethylsiloxane network supplied in primary form for compounding and molding. The term silicone covers a family of siloxane materials including fluids, resins, and this cured elastomer.
Where can I buy silicone rubber in bulk?
RawSource supplies silicone rubber in primary form for compounders and molders in bulk quantities. Request a quote specifying grade, form, and quantity. A CoA and SDS are provided with shipment.
What HS code classifies silicone rubber?
It classifies under HS 3910.00, silicones in primary forms, consistent with its supply as a compounding/molding raw material rather than a finished part. Identity is confirmed on the CoA at CAS 63394-02-5.
