This is our flagship automotive wash n wax soap, safe on all surfaces, PH neutral and will leave a high wax film on the surface wash after wash. When you understand what goes into making a high end soap, only then will you appreciate the saturation of cheap, inferior, low quality products for sale. In a world where "soap" has been around for a long time and everybody claims to have the best there is, we can only go by 30yrs of testing and we've worked out that the wrong soap can strip the lustre from your boat or cars surface in a short time.