3M Car Wash Soap safely removes dirt and grime without removing wax protection. This soap quickly and easily cuts through residue to make vehicles look clean once again. But it won't harm the protective layer of wax that shield polishes, keeping car sparkling and shiny out on the road. A quick cleaning with this soap will restore pride of ownership.Cuts Through Grit and Grime with Ease 3M Car Wash Soap is a highly concentrated liquid soap that develops heavy bodied, long-lasting suds to quickly remove dirt and road film from exterior automotive surfaces. This concentrated formula goes a long way, with one part of soap to 100 parts of water. Our soap is phosphate free and silicone free. It is also body shop safe, making it a perfect choice for your automotive wash supplies. Tough on Grime, Easy on Protective Waxes We made this soap to be gentle on wax layers for multiple reason. First of all, eroding the wax layer leaves polishes exposed to deterioration, which can rob a vehicle of its sparkle. Our soap is formulated to help preserve the beauty of your car by leaving the wax layer in place. Second, waxing a car involves labor. We want the wax layer to be preserved to save auto owners and body shop technicians the extra labor of re-waxing the car sooner than would otherwise be needed.