Q4 is an acetone-free cleaning agent with intense penetrating properties for oily and greasy machine parts. Ideal for industrial repairs and assemblies. Q4 brake cleaner contains a special blend of degreasing solvents for cleaning brake and clutch system parts without the need for dismantling. It is safe to use on all braking system’s Discs, Pads, Shoes, Callipers, Cables, Clutch parts and components and will not harm painted disc brake callipers. Ideal for removing Chain lube and Engine compartment dirt and grime.