High quality SBR/NBR thick washers/round rubber gasket

Custom thick washers in SBR or NBR provide a defined rubber section for a circular sealing interface. The compounds are alternative material choices, selected around the actual medium and environment. The washer thickness must also suit the joint's closing distance and the support available around its edges.

Assess the installed arrangement with the intended mating parts. A thick washer can change the final gap and the amount of fastener engagement, so the loose dimensions do not tell the whole story. The rubber should receive controlled compression without being squeezed into an unsupported space. The central opening needs to remain aligned with any passage or locating feature.

Keep material versions identified during assembly and replacement. A matching black appearance or similar softness does not establish equivalent behavior between SBR and NBR. Clean the seat before fitting and inspect for damage at the inner edge after removal. If the previous part was displaced, review the joint support and closing method instead of selecting a thicker washer to conceal the problem.

Material options

NBR / SBR. Custom formulation and color for the intended contact conditions.

Hardness selection

Rubber: 30–90 Shore A. If the previous part was displaced, review the joint support and closing method instead of selecting a thicker washer to conceal the problem.

Custom dimensions

The central opening needs to remain aligned with any passage or locating feature.

Fit & assembly

A thick washer can change the final gap and the amount of fastener engagement, so the loose dimensions do not tell the whole story.

Use & inspection

Clean the seat before fitting and inspect for damage at the inner edge after removal.

Photos illustrate structure or material only. The washer thickness must also suit the joint's closing distance and the support available around its edges. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.