Jul 10, 2014 - 08:11 AM
CB 80 is applied just like hair spray would be applied and almost the same amount. Only 2-3 seconds of spray per average size room. It is applied into open areas, so the amount that is airborne is actually very small, hardly enough to stain your walls.
If you apply directly at the wall, and let it pool and run down the wall, it would probably leave a visible mark.
Hope this helps.