Collection: Silicones

Automotive silicones – high-temperature sealants and gasket products

Automotive silicones and sealants have different uses, from caring for rubber door seals to creating flexible joints in certain mechanical components. This category includes silicone sealants, selected heat-resistant compounds and rubber care products.

When should high-temperature silicone be used?

Products for engines and other hot components must offer appropriate heat and chemical resistance. A temperature rating on the packaging does not automatically mean suitability for every surface or joint. Check compatibility with oil, coolant, the relevant materials and the specific assembly procedure.

Door-seal silicone or liquid gasket?

A product for rubber door seals normally protects the rubber and helps prevent freezing. An RTV sealant or so-called liquid gasket can be designed to form a joint after curing. These products should not be used interchangeably.

What should you check before applying?

• Compatibility with the material and operating fluids.
• Permitted working temperature and curing time.
• Surface preparation and degreasing requirements.
• Whether the product can replace the original gasket at that location.

Do not apply general-purpose silicone to brake-system parts or safety-critical joints unless the manufacturer expressly allows it. For joining other materials, see automotive adhesives.