The part pictured here is an exhaust system seal. A thin layer of compressable, sealing rubber is molded to a high-temperature glass-filled nylon inserts. The bond between the molded rubber and the nylon insert is critical to the sealing function, and the specialty EPDM rubber is designed to seal consistantly, even in a high temperature environment.
The molded rubber parts pictured are not in stock or for sale. These are examples of custom-manufactured products that illustrate Custom Rubber Corp.'s capabilities.