Custom made FKM Rubber O Ring Flexible Gasket

An FKM rubber O ring provides a flexible sealing element for a compatible groove or mating interface. Custom dimensions allow the ring to be selected around the seat, while the particular FKM formulation must suit the operating environment. The inside diameter and section size both matter to the installed contact.

Check the receiving geometry before choosing a replacement. A ring that stretches onto the mating part may still have the wrong section for the available compression. Too much rubber in the space can distort the ring as the joint closes, while too little can leave insufficient contact.

Select the compound for the actual substances and temperatures, including conditions during cleaning or servicing. Fit the ring without twisting it and keep sharp edges away from its surface. Inspect its position before the mating faces obscure it. During disassembly, look for an uneven contact mark that may indicate the ring shifted from its intended seat. Restore the original groove condition and use the selected dimensions rather than substituting a similar-looking ring from a different material family.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. A ring that stretches onto the mating part may still have the wrong section for the available compression.

Custom dimensions

The inside diameter and section size both matter to the installed contact.

Fit & assembly

Custom dimensions allow the ring to be selected around the seat, while the particular FKM formulation must suit the operating environment.

Use & inspection

Select the compound for the actual substances and temperatures, including conditions during cleaning or servicing.

Photos illustrate structure or material only. Too much rubber in the space can distort the ring as the joint closes, while too little can leave insufficient contact. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.