Mag Monster is formulated with powerful iron emulsifiers, penetrates brake dust to make wheel cleaning easier. Attacking brake dust and road grime for a complete clean, leaving wheels shining, with minimal effort. See it begin working immediately, turning purple as it gently cleans. Mag Monster is pH neutral acid free, and safe on all painted, chromed, alloy and plastic dipped wheels. Applications: Read entire label before use. Spray a generous amount on cool dry wheels. Allow to soak for 3-5 minutes. Do not let the product dry, if it does, re-apply before washing off. Wash it off with a high-pressure jet of water. Heavily soiled wheels may require agitation. Use regularly for best results.