I can't remember if this thread is still developing, and I can't remember what the specifics of the problem were. I do remember that people were generally not able to think of a good experience with chemical paint strippers, so I thought I'd throw this in: We used "Back to Nature 2" (by Dynacraft) for the removal of paint from wood sash and frame from a 1913 brick building. #2 Worked slowly-- it took a couple of applications with 8-hr dwell times-- but it took off all the paint. Smelled fine, non-caustic, waterborne. We have not found that it affected the adjacent masonry, left salts in the wood, or damaged the wood in any other way. As to how it works-- I can check for you, but you'd be better off calling Dynacraft. Kevin Daly currently crossing my fingers and knocking on wood after rereading what I just wrote.