FDA grade heat resistant silicone rubber gasket and o ring

A silicone rubber gasket should be matched to its joint format and actual thermal exposure. A flat face gasket and an O-ring seated in a groove require different sections and support, even if both use silicone. Where food contact is intended, assess the selected formulation and finished seal for the relevant substance, temperature, and cleaning conditions.

Define the outline or ring dimensions and the gap after the assembly closes. Include changes during heating and cooling that affect the available compression. The mating surfaces should support the rubber where pressure or movement acts on it.

Fit the selected format without folds or twist and keep the contact path clean. Assess the completed joint through the relevant operating cycle. During service, inspect the old seal for damage corresponding to a hardware feature before replacement. Preserve the intended section and material rather than moving between gasket and O-ring forms to compensate for an unresolved closing gap or damaged mating face.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Preserve the intended section and material rather than moving between gasket and O-ring forms to compensate for an unresolved closing gap or damaged mating face.

Custom dimensions

Define the outline or ring dimensions and the gap after the assembly closes.

Fit & assembly

A flat face gasket and an O-ring seated in a groove require different sections and support, even if both use silicone.

Use & inspection

During service, inspect the old seal for damage corresponding to a hardware feature before replacement.

Photos illustrate structure or material only. The mating surfaces should support the rubber where pressure or movement acts on it. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.