TUFF is a heavy duty, multipurpose grease, formulated to perform in harsh conditions.  Where many other lubricants have the tendency to break down due to high temperature, TUFF has special additives which give this unique lubricant a non-melt claim.  TUFF is an excellent extreme pressure grease, especially where bearings and chassis points are subject to wet or high temperature conditions, or heavy loads.  With extreme heat, pressure and water resistant additives, TUFF is truly a state of the art lubricant.