Silicone sealing washer with adhesive backed rubber rings

Adhesive backed rubber rings can help keep a washer in its intended location while adjoining parts are assembled. The adhesive layer and the silicone sealing section perform different roles. Holding the ring to one face does not independently establish the sealing capability of the completed joint.

Match the ring's bore, outside diameter and thickness to the receiving area. The adhesive system should suit that substrate and the actual temperature and cleaning exposure. Its application requirements also need to be followed so the part begins with the intended contact rather than trapped debris or a lifted edge.

Position the ring carefully before closing the joint and avoid stretching it to reach a mismatched outline. Evaluate the assembly for its required sealing duty after it is fastened. During maintenance, inspect the rubber and adhesive attachment separately for damage. Replace a ring that has torn or shifted with the defined configuration rather than assuming a remaining patch of adhesive can restore the original sealing geometry.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Position the ring carefully before closing the joint and avoid stretching it to reach a mismatched outline.

Custom dimensions

Match the ring's bore, outside diameter and thickness to the receiving area.

Fit & assembly

Evaluate the assembly for its required sealing duty after it is fastened.

Use & inspection

During maintenance, inspect the rubber and adhesive attachment separately for damage.

Photos illustrate structure or material only. Adhesive backed rubber rings can help keep a washer in its intended location while adjoining parts are assembled. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.