Customized flexible silicone gaskets/waterproof silicone O-ring

A waterproof silicone O-ring needs a supported groove and mating surface that apply the intended compression. Its flexibility allows the round section to deform within that designed space, but does not establish water resistance independently of the joint. Assess the complete connection under the actual exposure and pressure direction.

Match the section and installed diameter to the groove. Select the formulation for the water conditions, temperature, and cleaning substances involved. A flat gasket version should be treated as a different contact format with its own face dimensions and support.

Install the ring untwisted on clean surfaces and protect it from sharp assembly edges. Inspect for pinching before the joint is used. During maintenance, compare any extruded or cut region with the mating hardware. Correct a damaged seat or excessive gap before replacement rather than increasing ring thickness automatically, since the larger section can alter compression without resolving the cause of the original contact failure.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. A waterproof silicone O-ring needs a supported groove and mating surface that apply the intended compression.

Custom dimensions

Match the section and installed diameter to the groove.

Fit & assembly

Install the ring untwisted on clean surfaces and protect it from sharp assembly edges.

Use & inspection

Correct a damaged seat or excessive gap before replacement rather than increasing ring thickness automatically, since the larger section can alter compression without resolving the cause of the original contact failure.

Photos illustrate structure or material only. A flat gasket version should be treated as a different contact format with its own face dimensions and support. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.