Food grade silicone sealing o rings rubber sealing gaskets

Silicone sealing o rings for food contact applications should be developed for the contents and cleaning cycle as well as the joint dimensions. The formulation needs to suit the actual contact temperature and duration. The receiving groove determines the section and compression required for the installed seal.

Custom dimensions, hardness and color options allow the ring to follow the product. Consider how it is removed and refitted during cleaning, including access to the groove. A seal that is difficult to retrieve may be damaged by a tool even when its operating fit is suitable.

Inspect the ring and seat for residue before installation and avoid twisting the section into place. Evaluate the complete joint under representative use and cleaning conditions. During maintenance, look for cuts, particles and lasting deformation around the contact. If cleaning leaves residue repeatedly in one region, review the groove access and handling method. A change in food or cleaning chemistry should prompt a review of compound suitability rather than relying only on the ring's unchanged dimensions.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. The receiving groove determines the section and compression required for the installed seal.

Custom dimensions

Custom dimensions, hardness and color options allow the ring to follow the product.

Fit & assembly

Inspect the ring and seat for residue before installation and avoid twisting the section into place.

Use & inspection

If cleaning leaves residue repeatedly in one region, review the groove access and handling method.

Photos illustrate structure or material only. A sealing ring can fit its operating groove yet still need better access for removal. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.