Whether you have one car to paint or hundreds you will notice that overspray in your booth can cause a sticky mess on your walls and floors.
Professional painters normally wet their floor to reduce adhesion of paint before they bring a car into the booth. Most booth floors are concrete and not sealed or coated and the amount of water used is just enough to change the color of the concrete and to repel the paint.
If you are doing this in your shop you should make sure that there is no standing water before you …