Top Questions Asked About Vulcanized O-Rings

Are Vulcanized O-rings the Right Option for You?

Vulcanized orings can be used in a wide variety of applications and industries such as:

• Manufacturing

• Food and Beverage

• Construction

• Agriculture

• Semiconductor

• Energy

Vulcanized O-rings do not have to be round, though most of us envision round orings automatically. For instance, a square oring can be created to fit something as long as the groove is properly designed.

Does your oring application fit in one of the above categories? That is by no means an exhaustive list, as vulcanized orings are a great solution where there the application is static. If there are moving parts involved, vulcanization is likely not the best option.

Aren’t Spliced O-Rings and Vulcanized O-rings the Same Thing?

Spliced and vulcanized o-rings are two different things. Spliced o-rings are oring cord stock that is cut to length and the two ends are bonded together. Vulcanized orings are different as they use an uncured rubber compound mixed with an adhesive to provide the best bond. Vulcanized orings generally perform better over the life of the oring regardless of the application.

How is an O-ring Vulcanized?

Vulcanization requires a process that involves an uncured compound, adhesive, heat, pressure, and time. O-ring vulcanization starts with determining how much cord needs to be cut to provide the proper inside and outside diameter. Once the cord is cut to the appropriate length, the proper adhesive is applied depending on the compound we are vulcanizing, to each end of the cord. We utilize a butt splice method, ensuring the best cord seam alignment. The two ends of the cord material are placed in a splicing jig then the die is heated up in a press and the press is locked down to cure the bond. After a few moments, the o-ring is removed, cleaned up, and ready for use.

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