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Spliced and Vulcanized o-rings are custom sized o-rings made for any application. Spliced and Vulcanized o-rings are great for custom design or a unique size that is not included on the standard charts. Spliced and Vulcanized o-rings are a viable solution when standard o-rings cannot be used.

Vulcanization is a process which used heat, rubber adhesive, pressure and time to chemically bind the two ends together. The o-ring cord is cut to order, and vulcanized to ensure the strength of the joint. Spliced o-rings are made from extruded o-ring cord and then vulcanized to form the o-ring size using ID, OD or cut-length required. There are a variety of joints which can be bonded.

Applications such as window frame gaskets, door gaskets, filter housing gaskets and lid gaskets. The uses are as unlimited as your imagination will allow. A spliced and vulcanized o-ring must be used in static applications. Static seals are a seal that is made between two stable and immovable components.

The splice is usually never as strong as the original material from which the gasket is made. The doubling over, pinching and the twisting of a splice or bending back on a corner splice are not proper methods of testing.

A wide variety of standard and metric sizes are available. Rocket Seals can offer Aflas 75, FKM75-Brown, FKM75-Black, FKM90-Black, Neoprene 70, Closed Cell Neoprene/EPDM blend, EPDM 70, Flue Fluorosilicone 70, Hydrogenated Nitrile 80, Nitrile 50, Nitrile 70, Nitrile 90 Back-up, Pure-Gum Tan 40, Quad Nitrile 70, Quad FKM 75, Silicone 40, Silicone 50, Silicone 70, Square Nitrile 70, Square Silicone 70, Square FKM 75, and White FDA Nitrile 70. At this time, we cannot offer spliced and vulcanized o-rings on our website, but please call us at 1 (800) 445-7803 to order spliced and vulcanized o-rings. So if you have a special size, not listed on any size chart, give us a call, we’ll be glad to help.

Feb. 23, 2016

Next up: Common Seal Failures, Part 1