Spray onto your wheels (dipped or non-dipped), and let it sit for 2 minutes as it releases all the brake dust, dirt and grime from your wheels. Simply wash everything away and leave your wheels surgically clean. No scrubbing, no hand washing, no wheel brushes, no dirty rags or water. Never touch your wheels again. Absolutely amazing new product - and works exactly as described. PH balanced neutral, safe on all wheel types including Plasti Dipped and non Plasti Dipped wheels.