Review on Zing Green 1884S Adhesive Solution by Joe Meyer

I bought these to put up some doors at my local mosque. One door is always locked and the other is just an emergency exit but it's not marked so people keep trying to use both doors. I hope these signs help reduce that. The signs themselves are about what I would expect, but the backing is very difficult to remove and the adhesive seems to prefer sticking to the backing than the actual polystyrene sign. First I peeled off the corners, but the glue always went to the back. I then attempted to pry it off the middle of the edge and after a lot of work I was able to peel the backing off with the glue stuck to the shield. Considering the size and the difficulty of removing the back cover, I think this is overpriced. However, what I really like is that it is made from at least 70% recycled plastic.