Vulclast® Explained

Vulclast®, a trademark of Eastern Seals UK Ltd, serves as the company’s premier offering in the O-ring market. It features a 45-degree jointed scarf cut and is hot-bonded through a vulcanization process. Vulclast® O-rings are made from a variety of high-quality materials, including Viton, Nitrile, HNBR (Hydrogenated NBR), Silicone, and EPDM, all of which are sourced from extruded cord. This versatility makes it simple to design a custom O-ring tailored to your specific requirements.

The term “Vulc” may sometimes be used as shorthand in the industry, but it’s essentially a condensed form of the word “vulcanized or Vulcansied.” Unlike other O-rings that rely on adhesives or glues for bonding, Vulclast® employs generic compounds, ensuring a more robust and reliable joint. While some competitors might refer to similar products as hot-glued, cord rings, bonded rings, spliced, or simply glued, Vulclast® stands out for its superior bonding technique.