High quality flexible rubber sealing gasket/Neoprene rubber O-ring

A neoprene rubber O-ring is a custom circular seal whose section is compressed within a defined mating space. It can be developed for industrial equipment or enclosure sealing where the joint dimensions and neoprene formulation suit the operating conditions. Ring size and color are customizable.

The groove controls where the rubber can move as the joint closes. Its width, depth and adjacent clearances matter alongside the ring diameter. A larger section can fill more space, but it can also prevent closure or push rubber toward an unsupported gap. Establish the ring and groove as one arrangement rather than increasing section size to compensate for an uncertain fit.

During installation, keep the ring relaxed around its seat and avoid rolling it over sharp edges. Inspect the entire circumference before closing the joint, since a short displaced section can remain hidden once the assembly is together. Select neoprene for the actual fluid, exposure and temperature conditions. When servicing the joint, clean its groove and check the mating surfaces as well as replacing any damaged rubber.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. A Neoprene rubber O-ring is a custom circular seal whose section is compressed within a defined mating space.

Custom dimensions

Establish the ring and groove as one arrangement rather than increasing section size to compensate for an uncertain fit.

Fit & assembly

During installation, keep the ring relaxed around its seat and avoid rolling it over sharp edges.

Use & inspection

When servicing the joint, clean its groove and check the mating surfaces as well as replacing any damaged rubber.

Photos illustrate structure or material only. The groove controls where the rubber can move as the joint closes. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.