rubber rectangular seal ring custom made silicone o-rings

A custom rubber rectangular seal ring follows a joint whose sealing path has straight sides and corners. The outside outline, inner opening, and section dimensions should be defined separately so the ring receives the intended support. Silicone O ring configurations require their own groove and section assessment rather than being treated as the same shape.

Check the corner transitions of the receiving joint before fitting. The ring should lie in position without stretching one side or folding a corner. Clean the mating surfaces, then keep the rubber located as the parts close. Select the formulation for the actual medium, temperature, and maintenance conditions. The completed joint should be assessed under its intended use rather than judged from the loose ring's outline. During disassembly, inspect the contact pattern and any region that was hidden in the groove. Replacement should preserve the exact section and material as well as the overall length and width so the original sealing relationship is maintained.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. The ring should lie in position without stretching one side or folding a corner.

Custom dimensions

The outside outline, inner opening, and section dimensions should be defined separately so the ring receives the intended support.

Fit & assembly

Clean the mating surfaces, then keep the rubber located as the parts close.

Use & inspection

Replacement should preserve the exact section and material as well as the overall length and width so the original sealing relationship is maintained.

Photos illustrate structure or material only. The outside outline, inner opening, and section dimensions should be defined separately so the ring receives the intended support. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.