Customized durable heat resistant round flat rubber gasket

A round flat rubber gasket needs sound mating faces when a heated joint is reassembled. Residue, scoring, or a raised edge can concentrate contact on a small part of the sealing band. The selected compound and thickness should work within the intended closing gap rather than be expected to cover those surface defects.

Match the inner opening and outside diameter to the supported face area. Include the actual medium and temperature cycle in material selection. If surrounding parts expand differently, assess the gasket's contact at the important operating states as well as during cold fitting.

Clean the joint by a method appropriate to its materials without gouging the seating surface. Place the gasket flat and close evenly. During maintenance, compare the contact pattern around the circumference with any visible surface marks. Correct a local defect before replacing the gasket instead of choosing more thickness that changes compression elsewhere and may prevent the assembly from reaching its intended closing position.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. The selected compound and thickness should work within the intended closing gap rather than be expected to cover those surface defects.

Custom dimensions

Match the inner opening and outside diameter to the supported face area.

Fit & assembly

Clean the joint by a method appropriate to its materials without gouging the seating surface.

Use & inspection

Residue, scoring, or a raised edge can concentrate contact on a small part of the sealing band.

Photos illustrate structure or material only. A round flat rubber gasket needs sound mating faces when a heated joint is reassembled. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.