POR-15 Cleaner Degreaser cleans and degreases in one application without leaving residues, noxious fumes or flammable solvents. No other cleaner works as fast or as well. It makes petroleum-based cleaners almost obsolete because POR-15 Cleaner Degreaser can be diluted with water up to 3, 4, 5 and even 10 times its volume while remaining more potent than other cleaners. POR-15 Cleaner Degreaser removes grease, oil, mildew, algae, musty odors, soap films, wax. Use it to clean canvas, vinyl, nylon, holding tanks, grease traps, auto parts and more. Adhesion is important with most paints but has to be perfect for POR-15 to achieve its maximum effectiveness. A solvent wipe before painting didn't work with POR-15; in the lab we found it did more harm than good by leaving a residue that didn't help with adhesion or appearance. We had to come up with a substance that would clean metal without leaving a residue. What we developed, POR-15¬ Cleaner Degreaser, contradicts all accepted theories about metal prep products: its water-based, not solvent-based and it cleans without leaving residues. In laboratory adhesion tests, our POR-15¬ Rust Preventive coating using POR-15¬ Cleaner Degreaser first to clean the bare metal far exceeded every other prep product we found in the marketplace.