Removing tub appliques.
Whatever method you use, first test the cleaning/removal material in an inconspicuous part of the surface the label is stuck on the be sure it will not damage that surface. The appliques were made to put on the bottom inside of bathtubs and showers to make them less slippery and help prevent falls. They are made in three layers...the top layer that you see, a middle layer of Mylar film and a bottom layer of adhesive.
1. Carefully lift a corner of edge of each applique. Use your fingernail, a chisel-pointed cuticle stick or any rigid, sharp edged plastic or wood scraper to get it started.
2. Slowly pull up and peel back the applique making certain the two layers (top surface and Mylar film) remain together. Should the layers separate and the film tear as you progress, start and lift other corners around the applique, working toward the center until all portions are free. Cleaners and solvents will not eat through Mylar film.
3. After the appliques have been removed, there may be some bits of adhesive remaining on the tub surface. To this adhesive you may apply "Shout," "Spray-N-Wash," or "Magic Spray." Allow the adhesive to soak in one of these solutions for about half an hour. This will soften the adhesive to a rubbery consistency.