Hard Rubber Washer Colored Round Silicone Washer

A Hard Rubber Washer should be selected around the contact and compression required by the assembly. Firmness alone does not establish the correct fit: the washer still needs a suitable center opening, supporting footprint and available assembled thickness.

Rubber washers can be cut or molded using compounds chosen for the particular medium and temperature. A colored silicone version should be assessed for its own formulation and joint requirements rather than assumed equivalent to another firm rubber simply because the outline matches.

Place the washer on a clean seat and keep it centered as the mating parts close. Inspect whether the whole intended area is supported or whether contact is concentrated along a ridge. Follow the joint's specified assembly condition and evaluate its required function. During maintenance, compare the washer's contact impression with the mating surfaces. A localized deep mark can identify an alignment or surface issue. Correct that condition before replacement, and do not use additional tightening to make a hard washer fill a gap outside its designed compression.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. A Hard Rubber Washer should be selected around the contact and compression required by the assembly.

Custom dimensions

A colored silicone version should be assessed for its own formulation and joint requirements rather than assumed equivalent to another firm rubber simply because the outline matches.

Fit & assembly

Firmness alone does not establish the correct fit: the washer still needs a suitable center opening, supporting footprint and available assembled thickness.

Use & inspection

Correct that condition before replacement, and do not use additional tightening to make a hard washer fill a gap outside its designed compression.

Photos illustrate structure or material only. A Hard Rubber Washer should be selected around the contact and compression required by the assembly. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.