Custom made durable rubber sealing washer and gaskets

A rubber sealing washer provides a flexible annular boundary within a connection. Its position in the assembly determines which surfaces it seals and how the closing force reaches it. This custom part can match the opening, outer land, and thickness needed at that specific interface.

Consider the complete sequence of mating components. A washer placed on the wrong side of a shoulder may appear secure while leaving the intended path unsealed. Recesses and locating features should hold the part where it belongs as the joint is assembled.

The contact faces need to close evenly across the useful sealing width. Avoid folding the inner edge against the central feature or trapping debris under one side. Choose the compound for the actual medium and temperature at that location. When servicing the joint, note the intended position before removing components and inspect the seat for damage. A replacement with the same general outline still needs the correct thickness and material to reproduce the original sealing arrangement.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. A rubber sealing washer provides a flexible annular boundary within a connection.

Custom dimensions

Recesses and locating features should hold the part where it belongs as the joint is assembled.

Fit & assembly

The contact faces need to close evenly across the useful sealing width.

Use & inspection

When servicing the joint, note the intended position before removing components and inspect the seat for damage.

Photos illustrate structure or material only. Recesses and locating features should hold the part where it belongs as the joint is assembled. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.