I have the dreaded water damage in the ceiling, the roof has been repaired, but now i need to rebuild the ceiling, I started by attempting to remove the vinyl soft touch material, well as is my luck, the vinyl material pulled off, but the foam backing stayed in a large area, I've tried scraping it with a putty knife and a razor type scraper, both to no avail, is there a chemical that will dissolve this foam or at least make it easier to remove, it's Not the same type of foam backing used as carpet underlayment.