Bore Tech’s Extreme Grease HD is an ultra tacky triple based synthetic blend formulated specifically for superior firearm operation. The high performance extreme pressure additives, enhanced rust inhibitors, and nano-ceramic temperature lubricants provide a wide operational temperature range of -85°F to +700°F and eliminate the “gumming” and “running” found our competitors’ brands The proprietary formulation has a much lower coefficient of friction than molydisulfide, flouropolymers, lithium and graphite based greases and penetrates into metallic and polymer surfaces providing unsurpassed and extended lubrication to over 2000°F.