Flexible rubber seal gasket/rubber washer with different shapes

A flexible rubber seal gasket can be custom molded in different shapes for a particular mating interface. The outline should follow the joint naturally, with sufficient support beneath the working region. Flexibility helps the component conform within its intended design, but should not be used to bridge incorrect hole spacing or an oversized perimeter.

Lay the gasket into position and check its contour before closing the assembly. Narrow sections and changes in direction should remain untwisted. Any locating feature needs to hold the part without pulling it away from the surface where sealing contact is required.

Select the finished material for the contents, environment and cleaning method. Inspect the mating faces for debris or damage that could create uneven contact. When the joint is opened, examine the gasket's resting shape after removal; a section that stays stretched or folded may have been displaced during assembly. Replace it with the correct geometry and address the locating issue rather than forcing the same shape back into service.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. Flexibility helps the component conform within its intended design, but should not be used to bridge incorrect hole spacing or an oversized perimeter.

Custom dimensions

When the joint is opened, examine the gasket's resting shape after removal; a section that stays stretched or folded may have been displaced during assembly.

Fit & assembly

Lay the gasket into position and check its contour before closing the assembly.

Use & inspection

Inspect the mating faces for debris or damage that could create uneven contact.

Photos illustrate structure or material only. The outline should follow the joint naturally, with sufficient support beneath the working region. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.