[squeeforever]

You dont have to back polycarbonate paint unless its a light color you can see through. In that case, you can just back it with more polycarbonate paint. Faskolor needs to be backed no matter what because its a water base paint. You can back it with polycarbonate paint as well. You dont have to back polycarbonate though. I usually just back it with the last color I sprayed.