Matco-Norca offers Bolt and Gasket Sets with both non-asbestos and red rubber gaskets, available in full face and ring style sets. Non-asbestos gaskets are constructed of aramid and other synthetic fibers and bonded with nitrile rubber. They meet ASTM F152 and are suitable for use with water, air and a variety of industrial gases and fluids. Red rubber gaskets are constructed of styrene butadiene rubber and have a smooth finish. They meet ASTM D-1330 and are suitable for use with hot and cold water, air and neutral fluids.