Profile: Mercer Gasket & Shim is an ISO 9001:2000 certified company, which specializes in the custom manufacture of industrial gaskets. We fabricate gaskets, die-cut parts and strip from a wide range of materials. We deal with non-metallic, metallic gaskets, shims, O-rings, expansion joints and hose. We utilize the advanced waterjet technology. We fabricate old-style fiberglass boiler gaskets for hand-holes and man-ways as well as peroxide-cured EPDM topogee gaskets.