High quality round rubber washer/silicone rubber gasket

A silicone rubber gasket provides a custom compliant interface around an opening, with round washer forms available for circular joints. It can be developed for equipment housings, bottle mouths or pipeline interfaces where the selected silicone formulation suits the contact conditions. Dimensions follow the mating parts and the amount of space available when the joint is closed.

Identify what stops the joint from closing further. A fixed shoulder, housing face or separate fastening arrangement can determine the final gap and therefore the room left for the gasket. Choosing thickness without this reference can lead to insufficient contact or prevent the assembly from reaching its intended position.

Place the gasket against a clean supporting face and keep its opening aligned with the passage or component inside it. Check that it remains in place while the second part approaches, especially where the joint closes out of view. For repeated servicing, inspect the seat for deposits and the gasket for distortion. Keep replacement dimensions and formulation consistent with the joint instead of using a ring selected only by appearance.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Identify what stops the joint from closing further.

Custom dimensions

A silicone rubber gasket provides a custom compliant interface around an opening, with round washer forms available for circular joints.

Fit & assembly

Place the gasket against a clean supporting face and keep its opening aligned with the passage or component inside it.

Use & inspection

For repeated servicing, inspect the seat for deposits and the gasket for distortion.

Photos illustrate structure or material only. Dimensions follow the mating parts and the amount of space available when the joint is closed. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.