Custom made silicone rubber gasket rubber washer

A silicone rubber gasket formed as a washer provides a flexible annular contact between mating components. Its purpose depends on the joint: the profile may be intended to seal, separate surfaces, or provide a local compliant interface. The required function should be defined before the ring dimensions are selected.

Check the inner opening, outside contact area, and available thickness against the actual support faces. A fastener head or adjacent feature should not load only an unsupported sliver of the rubber. The selected silicone formulation also needs to suit the relevant medium and environmental conditions.

Fit the ring flat and confirm that it remains centered as the components close. Assess the finished assembly for its specified function rather than assigning performance from the material name. During disassembly, examine the contact pattern for pinching or displacement and check the hard faces for defects that could damage a replacement. A repeated uneven pattern often warrants attention to the joint arrangement as well as the condition of the washer itself.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. A silicone rubber gasket formed as a washer provides a flexible annular contact between mating components.

Custom dimensions

Check the inner opening, outside contact area, and available thickness against the actual support faces.

Fit & assembly

Fit the ring flat and confirm that it remains centered as the components close.

Use & inspection

During disassembly, examine the contact pattern for pinching or displacement and check the hard faces for defects that could damage a replacement.

Photos illustrate structure or material only. A repeated uneven pattern often warrants attention to the joint arrangement as well as the condition of the washer itself. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.