Bore Tech Extreme Duty Grease is a synthetic based fluoropolymer lubricant formulated for superior performance under extreme pressures and over a wide temperature range of 40° to 400°F. It has a lower coefficient of friction than petroleum based lithium grease and provides excellent film strength and water resistance. It is a premium product for use on gun bolts, slides, and mechanisms of all varieties where smooth operation, extended part life and performance under extreme conditions is required.