Turtle Wax Redline is a non-acidic. pH balanced alloy wheel cleaner. It works on contact to clean brake dust and loosen stubborn iron particles which can become embedded in the surface of the wheel. Because it it pH balances it can be left to work for longer periods without any damage caused to the wheel.Non-acidic and pH balances so is safer for alloy wheels, nuts and decalsTurns red on contact with brake dust so you can see how effectively it is workingRemoves brake dust, road grime and stubborn iron particles5 Litre bottle