Max-Tuff is an ultra-tough synthetic lubricant designed for use in reassembling repaired equipment.Max-Tuff utilizes durable synthetic molecules that adhere to metal surfaces and create an extremely strong barrier between surfaces. This min imizes the possibility of metal-to-metal contact while providing excellent protection against rust and corrosion to both ferrous and nonferrous metals.Also available in a case of 12 . Max-Tuff is formulated with Royal Purples proprietary Synslide additive technology.