Compression-molded different rubber insulative gaskets/washers

Rubber insulative gaskets can create a separating layer between matching components while following a custom joint outline. The practical design starts with where the parts may touch, including edges and fastening points. A gasket that covers the broad faces can still leave an unintended contact route if a fastener or locating feature bridges the separation.

Define the thickness, hole positions, and perimeter around the assembled geometry. Compression should keep the layer located without squeezing it away from the area that needs coverage. The chosen rubber and the complete construction need assessment for any electrical insulation requirement under the actual operating conditions.

Install on clean surfaces and remove burrs that could puncture the layer when the joint closes. Align openings before tightening so the gasket is not dragged sideways by a screw. During maintenance, look for cuts, embedded metal particles, and localized thinning near hardware. Replace damaged parts rather than stacking improvised layers, since additional thickness can change the fastener fit and closing gap elsewhere in the assembly.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. Compression should keep the layer located without squeezing it away from the area that needs coverage.

Custom dimensions

Define the thickness, hole positions, and perimeter around the assembled geometry.

Fit & assembly

A gasket that covers the broad faces can still leave an unintended contact route if a fastener or locating feature bridges the separation.

Use & inspection

Replace damaged parts rather than stacking improvised layers, since additional thickness can change the fastener fit and closing gap elsewhere in the assembly.

Photos illustrate structure or material only. A gasket that covers the broad faces can still leave an unintended contact route if a fastener or locating feature bridges the separation. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.