Simoniz Brake Away is a non-acidic brake dust and wire wheel cleaner that combines safety and performance. Brake Away is formulated with solvents and wetting agents to break the bond that holds brake dust and other oily dirt to wheels. Brake Away is safe for most wheels, but shouldn't be applied to hot wheels or allowed to dry on surface, nor is it suitable for Porsche and Corvette wheels. Brake Away is a great addition to your car wash soap supply.