Birchwood Casey's Moly Dry Lube is a dry film lubricant designed to penetrate and form a smooth, extremely slippery surface on metal. Molybdenum disulfide particles are deposited onto metal surfaces and give maximum lubricity and wear resistance, even under extreme temperatures and pressures. Won’t attract and hold dust, dirt or other contaminants! Easy-to-use Moly Lube Dry Film Lubricant uses an almost instant-drying solvent/degreaser as the carrier in a convenient, aerosol can. Especially suited for internal lubrication of moving parts on all firearms. Recommended for precision airguns where petroleum lubricants are not advised. Comes in a 9.5 oz. Aerosol can.