WD-40 Specialist Industrial-Strength Cleaner & Degreaser is a water-based, non-aerosol formula with a unique bio-solvent engineered and proven to be more powerful, safer and easier to use than other degreasers on the market. It quickly breaks through tough grease and grime and is excellent for cleaning greasy automotive parts, tools shop floors, industrial machinery, commercial appliances and equipment. Added corrosion inhibitors help protect against flash rust.