Custom made silicone rubber square round gasket

A silicone rubber square round gasket can be customized to the outline required by the assembly. Square and round arrangements need different dimensional references, but both depend on the supported contact path and the available closing space. The shape should follow the mating interface rather than being forced into a nearby generic size.

For a square outline, compare the side lengths and corner radii as well as the central opening. For a round arrangement, identify the relevant diameters and section. In either case, narrow regions and locating features should remain aligned without stretching the rubber during installation.

Select the material for the actual contact conditions and define thickness from the intended compression. Lay the gasket flat on a clean seat, then check the complete perimeter before bringing the mating parts together. Use the assembly's intended closing sequence. During care, inspect corners or inner edges where damage may be less obvious than on the broad face. Keep replacement components identified by their full geometry so that similar outlines are not confused during servicing.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Square and round arrangements need different dimensional references, but both depend on the supported contact path and the available closing space.

Custom dimensions

For a square outline, compare the side lengths and corner radii as well as the central opening.

Fit & assembly

Lay the gasket flat on a clean seat, then check the complete perimeter before bringing the mating parts together.

Use & inspection

During care, inspect corners or inner edges where damage may be less obvious than on the broad face.

Photos illustrate structure or material only. The shape should follow the mating interface rather than being forced into a nearby generic size. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.