Autogeek Quart Foamaster Foam Gun with FREE BONUS The idea behind a foam gun is to minimize the amount of rubbing and scrubbing necessary to clean the vehicle by pre-soaking it with frothy foam The foam starts loosening and lubricating the paint immediately As you work your way down and around the vehicle with a mitt or sponge, you dont have to use as much force to remove dirt and debris This gentle touch substantially decreases the risk of micro-marring because the paint is covered in a foamy layer of lubrication