The MicroPore« paper gasket exhibit exceptional fluid resistance and sealability in a wide range of applications and flange conditions; with a reduced pore size, this material is very resistant to wicking or fluid migration through the material and capable of handling operating temperatures in excess of 500 degree The Foamet« product line features an aluminum core coated on two sides with expanded nitrile rubber, then coated with a silicone release coating to insure a positive seal with excellent release characteristic upon disassembly; available in beaded and non-beaded construction depending on the application Made in the U.S.A.. GASKET BACKPLATE 77-87XLH