Chockfast Grey 3 LtrCHOCKFAST GRAY was developed as a chocking compound for use under marine deck machinery, pumps, generators and steering gears. Industrially, the compound is used under diesel engines, generators, compressors, pumps, turbines, bearing blocks, crane rails and numerous other applications. It is also used extensively in the setting of anchor bolts into concrete. When used as a chocking compound for machinery, the CHOCKFAST Gray provides perfectly even