Molded various soft silicone seal ring/white rubber washer

A soft silicone seal ring should follow its intended joint without being stretched or pinched into place. The compliant section needs enough support from the mating geometry to remain where the design requires it during closure. Softer material can still be damaged by an edge or displaced into an unintended clearance.

Custom shape, dimensions and color allow the ring or washer profile to match the assembly. White is one available appearance, while the actual formulation should be selected for the medium and operating conditions. Compare the section and available groove space together rather than choosing only by outside diameter.

Place the part evenly and inspect the full contact path before the joint becomes hidden. If the ring moves as the mating face is lowered, review the locating arrangement and closure movement. During servicing, lift the old rubber carefully so it does not tear against the seat. Use the designated replacement dimensions and compound instead of assuming that any similarly soft ring will behave the same in the joint.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. A soft silicone seal ring should follow its intended joint without being stretched or pinched into place.

Custom dimensions

Custom shape, dimensions and color allow the ring or washer profile to match the assembly.

Fit & assembly

The compliant section needs enough support from the mating geometry to remain where the design requires it during closure.

Use & inspection

Use the designated replacement dimensions and compound instead of assuming that any similarly soft ring will behave the same in the joint.

Photos illustrate structure or material only. The compliant section needs enough support from the mating geometry to remain where the design requires it during closure. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.