Break-Free CLP is the unquestioned gold standard for cleaning, lubricating and protecting valuable possessions including firearms, vehicles, boats, barbecue grills, sports equipment, tools and more. It's a unique formulation of synthetic oils and individual proprietary ingredients which combine to do three important things at once: effectively clean, lubricate, and protect metal. Long-lasting lubricating film dramatically reduces adhesion of sand, grit or other abrasives which cause wear and failure. Corrosion inhibitors prevent the formation of rust while Break-Free's unique boundary film protects metal surfaces from metal-on-metal wear, moisture and other contaminants. Specially formulated synthetic oils won't lose viscosity, dry out or stiffen up in extreme environments - such as cold, heat, dust, dirt, humidity and even salt air - keeping equipment in ready condition for months at a time. It has been proven to perform in temperatures ranging from -65°F to +475°F and after saltwater immersion. It does not degrade under high temperatures and extreme pressure. 4 oz. bottle.