Dynatex® 5th Wheel Grease is a heavy-duty waterproof lubricant containing graphite and molybdenum disulfide and is formulated to tolerate the harsh environments that a fifth wheel encounters. The high solid content forms a plating action, giving this product higher load carrying capabilities crucial in a fifth wheel application. Anti-rust and corrosion inhibitors are mixed together with graphite, moly, and thickeners, to create a product that will outlast any conventional grease. It is virtually waterproof so it won't wash off slider rails on wet roads. Provides excellent lubrication and protection in all fifth-wheel applications. It's easy to use and very cost-effective. Use On: All heavy-duty fifth wheel top plates, King pins, Trailer balls, Axle slides, Lug nuts, Fifth wheel slides.