ASSEMBLEE GOO is formulated for use as an assembly aid and lubricant for virtually any assembly application (including engines*). It provides helps facilitate the assembly process by holding components such as needle bearings and hydraulic seals in place. Assemblee Goo also provides the initial lubrication for the moving parts on the first start-up after service, preventing wear and scoring. Simply apply to O-rings, seals, bearings, gaskets, sealing rings, bushings, thrust washers and more during the build process. * Not for use on new camshaft lobe break-in when rebuilding overhead valve pushrod engines. Use a break-in product specific to that application.