Small sizes rubber thin gasket/square sealing rubber washer

A square sealing rubber washer in a small size requires careful positioning before the joint is closed. The thin molded section should match the side dimensions, corners, and central opening of its seat. Custom material and geometry allow the component to follow that compact interface.

Keep the washer supported during handling and avoid pulling a narrow edge to align it. At this scale, a small fold or trapped particle can affect a noticeable part of the contact path. Inspect the complete outline before the mating surface covers it.

Select the compound for the medium, temperature, and cleaning process. Guide the mating part into place without dragging the washer sideways, then use the assembly's intended closing method. During replacement, clean the seat and check the old part for tears at corners or openings. Match the required thickness rather than a compressed used section, and store unused washers flat away from sharp hardware that can damage their thin edges before installation.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. Guide the mating part into place without dragging the washer sideways, then use the assembly's intended closing method.

Custom dimensions

The thin molded section should match the side dimensions, corners, and central opening of its seat.

Fit & assembly

Keep the washer supported during handling and avoid pulling a narrow edge to align it.

Use & inspection

During replacement, clean the seat and check the old part for tears at corners or openings.

Photos illustrate structure or material only. A square sealing rubber washer in a small size requires careful positioning before the joint is closed. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.