This grease is designed for high temperatures, which permanently protects metal surfaces from corrosion and from stifnness and blockage during mounting. Copper is also used for components opering in extreme tough conditions, such as exhaust manifold bolts, brake parts, spark plug threads, turbine screws, and motor hinged screw couplings. Warning: Copper grease is not suitable for lubricating cyclic parts. Instructions: Clean the parts thoroughly. Then lubricate both joint surfaces and conect them to the grease. Clean the excess oil from the surface.