Easily remove spark plugs, cylinder heads and exhaust head bolts! Composed of a highly refined blend of aluminum, copper and graphite lubricants. Use during assembly to prevent galling, corrosion and seizing and to assure easier disassembly. Features a temperature range of -60°F to 1600°F. Lubricant is salt, corrosion and moisture resistant – ideal for RV and marine use. Priced each.