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Protect electrical systems from environmental contaminants

Seal out the harsh conditions of the engine compartment.

Your automotive electrical components are only as effective as the performance of the complex harnesses, electrical connectors, and seals on which they rely. Using Silastic® brand silicone elastomers in O-rings, grommets, and seals ensures ease-of-assembly, maintenance, and ongoing reliability.

Improve your manufacturing options and process efficiency

  • Silastic high-consistency rubber (HCR) elastomers can be molded or extruded
  • Silastic liquid silicone rubber (LSR) elastomers can be molded, injection molded, or overmolded, enabling process automation to quickly and easily fabricate intricate parts

Simplify assembly and maintenance
Self-lubricating Silastic® silicone rubber elastomers provide:

  • Trouble-free assembly of components
  • Easy insertion and extraction of gaskets and connector seals
  • Ability to meet difficult insertion/extraction test requirements

Ensure protection for your electrical systems
SILASTIC® silicone elastomers:  

  • Have a wider operating temperature range than most organic elastomers
  • Can be tailored or custom compounded to meet extreme or extended heat resistance requirements
  • Retain their natural flexibility and continue to perform at low temperatures that would cause most organic elastomers to become brittle
  • Resist compression set at both high and low temperatures
  • Maintain their elongation properties longer than organic elastomers and at higher temperatures

Learn how the electrical system sealing capabilities of Silastic® silicone elastomers benefit these demanding applications

Connector Seals and Gaskets

Take advantage of our expertise

With more than 50 years of silicone elastomer compounding expertise, Dow Corning can custom compound or tailor a proven silicone elastomer to help you achieve the best processing efficiency and performance value.

Learn about your custom compounding and technical support options.

Tell us what you need.

Ask an expert to help you specify the ideal Silastic® silicone elastomer for your application.

How can we help you today?

Discuss  your electrical system sealing challenges with a Dow Corning expert

Contact Us

Let us tailor or custom compound a silicone elastomer to meet your exact requirements.

Request a Tailored Elastomer


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