Silicone rubber square gasket Flat rubber sealing

A Silicone rubber square gasket sits between mating faces as a custom flat sealing component. Its square outline should remain aligned as the upper part is brought into place. Sliding a cover across the gasket can move a straight run or fold a corner before the joint is fully closed.

Locate the gasket on its intended seating surface and align any holes before applying closure force. Keep the material relaxed rather than stretching it to reach a fastening point. Custom dimensions, colors and hardness choices from 20 to 80 Shore A allow the part to suit the selected joint. Check the perimeter as the assembly closes, particularly near corners that are hard to see from above. During disassembly, inspect whether a shifted section has been cut or permanently flattened. Clear the mating faces before installing a replacement and correct any guide or assembly path that drags the seal out of place. The right material cannot compensate for a gasket that no longer follows its intended sealing path.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Locate the gasket on its intended seating surface and align any holes before applying closure force.

Custom dimensions

Custom dimensions, colors and hardness choices from 20 to 85 Shore A allow the part to suit the selected joint.

Fit & assembly

Check the perimeter as the assembly closes, particularly near corners that are hard to see from above.

Use & inspection

Clear the mating faces before installing a replacement and correct any guide or assembly path that drags the seal out of place.

Photos illustrate structure or material only. Sliding a cover across the gasket can move a straight run or fold a corner before the joint is fully closed. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.