I believe this product is top shelf. I think the product was engineered for a particular application. My application was for a 16 year old toy hauler that was always set outside for its entire life. The decals were curling and pulling away from the fiberglass side wall, leaving the hardened glue behind.
I tried the eraser wheel, heat gun, scrapers, polishing compound, lacquer thinner, a commercial 3M product and of course the Pro Sol, and I could not get anything to remove the old adhesive.
Al...