CRC 5-56 Non-Flammable is a multi-purpose service spray that penetrates, lubricates and prevents corrosion. It forms a thin film that lubricates moving parts for smooth action and silences annoying squeaks.CRC 5-56 Non-Flammable has superior penetrating power that loosens rusted parts, and displaces water from wet equipment. Safe for all metals and alloys. Contains Carbon Dioxide.ApplicationsRecommended for penetrating rust and corrosion, freeing components bonded by dirt & scale, and preventative maintenance programs. Ideal for situations and environments where flammable vapours may become ignited and cause fire.