Sounds great and I have tried this. But I find it takes to much time to do and I don't have the patience for it. I do painting for others and have tried many things. What I find best and faster is this. I just paint and do the best I can not to get to much paint on the glass.But not concerned if I do.I have a wide razor with a handle. I just go back and scape the paint off the glass that way.Comes right off and fast too.