Rubber seal hole plug Custom silicone stopper

A Rubber seal hole plug should be developed around the edge and surface that actually retain and seal it. The exposed head can be shaped for appearance or removal access, but the body beneath it must match the opening's depth and profile.

Custom silicone and other rubber configurations can follow the required structure, dimensions, hardness and color. Define the operating exposure and whether the plug is intended to remain fitted or be removed during service. These conditions influence both the material and the available grip.

Trial the closure in the finished opening and inspect the full seating boundary before evaluating the assembly's sealing requirement. Do not use extra insertion force to flatten a head held up by an obstruction. During replacement, examine the opening and the hidden contact section of the old plug together. A local cut or uneven groove can indicate a mating-surface issue that should be corrected before fitting a new part with the same design dimensions.

Material options

Custom silicone or rubber formulation; select the compound alongside the mating geometry.

Hardness selection

Silicone: 20–80 Shore A; solid rubber: 30–90 Shore A. Do not use extra insertion force to flatten a head held up by an obstruction.

Custom geometry

The exposed head can be shaped for appearance or removal access, but the body beneath it must match the opening's depth and profile.

Fit evaluation

Trial the closure in the finished opening and inspect the full seating boundary before evaluating the assembly's sealing requirement.

Color & OEM

Custom colors; OEM identification positioned outside closure contact surfaces.

Photos illustrate structure or material appearance only. Trial the closure in the finished opening and inspect the full seating boundary before evaluating the assembly's sealing requirement. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.