Silicone rubber seal rings/ Waterproof o-ring

Silicone rubber seal rings need a defined seat that keeps the contact profile in its intended orientation. During fitting, a ring can roll or twist as it passes over a mating feature, leaving uneven contact that may be hidden once the joint is closed.

ETOL offers custom sizes, materials, hardness and colors. Compare the actual cross-section and seat dimensions before installation. Select the compound for the intended medium, temperature and service exposure, with the required sealing function evaluated in the complete assembly.

Handle the ring without dragging it over burrs or sharp corners. Position it uniformly and inspect the circumference before bringing the mating surfaces together. Keep debris away from the contact path and use the assembly method appropriate to the joint. During servicing, release the system as required and examine the removed ring for uneven flattening or cuts. If the ring has twisted repeatedly, review the installation path and locating geometry before replacement rather than stretching another ring through the same obstructed route.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Coordinate silicone flexibility with the ring retaining seat so the contact profile does not turn away from its intended orientation under compression.

Custom dimensions

Compare the actual cross-section and seat dimensions before installation.

Fit & assembly

Keep debris away from the contact path and use the assembly method appropriate to the joint.

Use & inspection

During servicing, release the system as required and examine the removed ring for uneven flattening or cuts.

Photos illustrate structure or material only. Silicone rubber seal rings need a defined seat that keeps the contact profile in its intended orientation. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.