CRC Knock'er Loose Penetrating Solvent, 13 oz Aerosol Can, Reddish Creeps into cracks, seams, threads and joints better than the competition Volatile organic compounds (VOC) compliant NSF H2 registered for use in meat and poultry plants Lubricating residue prevents corrosion Eases the diassembly of machinery, tools and equipment for routine maintenance and emergency repairs Loosens rusted and corroded buts, bolts and frozen components