Kupfer-Paste, copper paste. Properties. For lubrication and protection of heavy-duty plug-in and screw joints, e.g., on the back side of brake pads, threads of spark plugs, joints of calipers of disc brake mechanisms, plug-in joints of the exhaust system, etc. Specially for screw joints of the exhaust pipe, muffler, chassis parts and brake devices. Application. Apply on the cleaned surface with a brush or non-fiber fabric. The amount of lubricant depends on which part it is applied to.