A safe way to clean and degrease brakes, improve brake performance and help stop disk brake squeal. Powerful spray removes oil and grease without disassembling the brake unit. Stops disk brake squeal when caused by contaminants. Cleans brake linings, drums, springs, cylinders, and disk brake pads. Non-Flammable formula. Dissolves and removes soil, grease, brake fluid, oil, and grime build-up.