Originally Posted by migsBIG
That not too bad of an idea, but the problem with the acid is it has to be applied overhead as this is the inside of the roof. Even with goggles, don't want that kind of stuff dripping on me. Second thing is I plan the leave the door panels on so i would probably want to avoid anything that might be a problem for clean up or damage the panels, though they will be covered.
I used the OSPHO on my inside roof.i just dampened a sponge (NOT SOAKED ) and it worked great.