Molded different shape rubber silicone gasket/rubber seal parts

Custom rubber seal parts can be molded or cut in different outlines to follow the sealing interfaces of an assembly. The useful shape is determined by the contact function, including the opening that must remain clear and the surfaces available to support the rubber.

Select silicone or another suitable compound for the relevant exposure, then define the profile and thickness around the joint. Local features such as a narrow neck, corner or locating opening should be evaluated as part of the whole part. A complicated outline should not need to be stretched into a different shape during fitting.

Trial the component using the actual assembly sequence. Inspect whether the mating part draws any section away from its intended face as it closes. If access becomes restricted, complete the seating check before the surrounding hardware is installed. During replacement, compare the designated shape and formulation with the spare so a similar outline from another location does not introduce a different section or material into the joint.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. A complicated outline should not need to be stretched into a different shape during fitting.

Custom dimensions

The useful shape is determined by the contact function, including the opening that must remain clear and the surfaces available to support the rubber.

Fit & assembly

If access becomes restricted, complete the seating check before the surrounding hardware is installed.

Use & inspection

Inspect whether the mating part draws any section away from its intended face as it closes.

Photos illustrate structure or material only. The useful shape is determined by the contact function, including the opening that must remain clear and the surfaces available to support the rubber. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.