Molded round/square rubber washer and sealing O-rings

Custom rubber washer and sealing O-rings options should be identified by their section as well as their outer outline. Round and square layouts can serve different seats, and a flat washer does not replace a circular-section ring simply because both fit around the same feature. The complete joint determines the required geometry.

Before servicing, identify the locating surfaces and the intended closing position. These show where the rubber must remain supported and how much space is available.

Fit each component without twisting or stretching it to make a nearby size work. Check the full contact path before the mating part closes. During replacement, keep section variants separated and use the required original dimensions rather than copying a used seal that has changed shape under compression. Inspect the seat for damage where uneven deformation repeatedly occurs, preserving the intended interface instead of compensating with a different ring form. Label separated section variants during maintenance.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. Fit each component without twisting or stretching it to make a nearby size work.

Custom dimensions

Custom rubber washer and sealing O-rings options should be identified by their section as well as their outer outline.

Fit & assembly

Inspect the seat for damage where uneven deformation repeatedly occurs, preserving the intended interface instead of compensating with a different ring form.

Use & inspection

During replacement, keep section variants separated and use the required original dimensions rather than copying a used seal that has changed shape under compression.

Photos illustrate structure or material only. Custom rubber washer and sealing O-rings options should be identified by their section as well as their outer outline. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.