High temperature resistant silicone rubber gasket/washer for seal

A silicone rubber gasket forms a custom sealing layer between mating surfaces. For an application involving elevated temperature, the useful configuration must account for the actual local heat, contact medium, and joint geometry. The part should be evaluated in the condition in which it will work, not only when fitted cold.

Define the required sealing path and the available compression after the joint is secured. The gasket should stay supported around its edges and leave any necessary passage unobstructed. Changes in the adjoining parts during operation can affect the interface, so the finished assembly belongs in the fit and use assessment.

Custom dimensions and color can follow the equipment or closure design. The silicone formulation should suit the intended temperature and exposure rather than rely on a generic high-temperature label. During replacement, clean the seat and inspect it for damage or distortion. A new gasket cannot restore continuous contact if the mating surfaces no longer meet as intended. Preserve the specified thickness and profile when reassembling the joint.

Material options

Silicone. Custom formulation and color for the intended contact conditions.

Hardness selection

Silicone: 20–80 Shore A. Define the required sealing path and the available compression after the joint is secured.

Custom dimensions

Custom dimensions and color can follow the equipment or closure design.

Fit & assembly

Changes in the adjoining parts during operation can affect the interface, so the finished assembly belongs in the fit and use assessment.

Use & inspection

During replacement, clean the seat and inspect it for damage or distortion.

Photos illustrate structure or material only. For an application involving elevated temperature, the useful configuration must account for the actual local heat, contact medium, and joint geometry. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.