Touchless car washes that spray liquid after liquid to “presoak”, “power wash”, “sealant”, “protective coating” and other things, how does this work? Does spraying X liquid after Y liquid after Z liquid really clean and do anything to protect a car’s paint?

Question

Edit: as in no need to really dry/wipe off the prior application? Or is it really just a soap and wash that gets most of dirt off?

In: 660

Answer 1

Some liquids are more acidic and some liquids are more alkaline. Bugs and dirt can be removed from a car’s paint, rubber, and glass more effectively by using a liquid with the right ph and other additives like detergents and surfactants. Applying the right chemicals in the right order can produce a clean and protected car.