Hey guys, hopefully easy question for you. Have a paint stain that the customer would like removed from a stone wall. I spot tested with paint thinner and a hard bristle brush and it did not do anything. Told the customer (a friend of mine) I would do a little more reading then try again once I find a solution. A couple guys in the F9 Facebook group recommended I use “World’s Best Graffiti Remover”. Do you guys agree?

Paint thinner won’t do much at all on dried paint. Grafitti remover works, as would acetone or xylene. The clean spot will be noticable
Got ya, thanks! I think I’ll try the acetone first because it’s initial cost is the lowest then work my way up if need be. You make a good point with the clean spot thing, I’ll definitely have to set those expectations very clearly beforehand.
I know that iron out will remove paint.
What would be the best way to remove paint with iron out? Spray on with hand pump and spray off with a pressure washer?
@mkendrick1390
i sprayed a white house with a rust stain, seeing how well it would work, then agitated it with me hand. Alot of paint rubbed off. seemed more than simply oxidation, but house was going to be painted, so not sure what your results would be.