APPL’s silicone, FKM, and EPDM encapsulated O-rings with FEP encapsulation are designed to address the growing problem of sealing in the most hostile chemical and temperature environments. It combines the best qualities of FEP material on the outside with its chemical inertness and an elastomer on the inside for resilience. This unique combination forms a highly effective, long lasting seal for the most demanding applications.
There are certain applications which prohibit the use of conventional rubber O-ring seals. The use of hostile chemicals or extreme temperature (both high and low) during various processes can make effective sealing very difficult. The O-rings comprise FEP over silicone, FKM, or EPDM and can be used in temperatures ranging from –75°F to +400°F (–60°C to +205°C) depending upon the choice of the elastomer core.