Custom made Silicone Rectangle Rubber Seal Gasket

A rectangle rubber seal gasket follows a four-sided mating boundary with custom length, width and thickness. The silicone component should sit on the intended contact land without its long sides bowing inward or its corners being stretched. Color and compound options can be selected for the assembly.

Compare the inside and outside corner radii with the mating faces. A rectangle measured only by overall width and length may still fail to seat if those curves differ. Locate the gasket before bringing the second part down so the straight sections do not slide away from their supports.

Apply compression through the fastening arrangement intended for the joint. Inspect accessible edges for uneven displacement rather than increasing force to hide a lifted corner. Choose the silicone formulation for the operating media and temperature. During disassembly, note whether the contact pattern is consistent along both long sides. A bowed cover or uneven support can cause repeated damage in the same region. Correct that relationship before replacing the gasket with a matching section and profile for continued use.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. The silicone component should sit on the intended contact land without its long sides bowing inward or its corners being stretched.

Custom dimensions

A rectangle rubber seal gasket follows a four-sided mating boundary with custom length, width and thickness.

Fit & assembly

Locate the gasket before bringing the second part down so the straight sections do not slide away from their supports.

Use & inspection

Inspect accessible edges for uneven displacement rather than increasing force to hide a lifted corner.

Photos illustrate structure or material only. Apply compression through the fastening arrangement intended for the joint. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.