China custom silicone rubber rectangular seal ring

A silicone rubber rectangular seal ring follows a joint whose sides and corners must align with the molded profile. The corner radii are part of the fit, not merely cosmetic details at the ends of two straight measurements.

ETOL can customize dimensions, color and material construction. Compare the complete seat outline and any locating features before selecting the ring. Keep the long sections relaxed so positioning one corner does not pull another out of place.

Lay the ring into the cleaned seat progressively and inspect all four corner transitions. Close the mating part by its specified method while checking that the rubber remains in its intended path. Evaluate the complete joint under the required conditions. During removal, support long sections instead of pulling the ring loose from one corner. Inspect for permanent stretching, cuts or an uneven contact impression before reuse. If the mating part has changed, reassess the outline rather than forcing the existing ring around a revised corner or shifted locating feature.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Select silicone firmness for the rectangular seal contact, considering corner support and locating features before changing the outline or grade.

Custom dimensions

Compare the complete seat outline and any locating features before selecting the ring.

Fit & assembly

Lay the ring into the cleaned seat progressively and inspect all four corner transitions.

Use & inspection

During removal, support long sections instead of pulling the ring loose from one corner.

Photos illustrate structure or material only. A silicone rubber rectangular seal ring follows a joint whose sides and corners must align with the molded profile. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.