I have a 30 yr old cultured marble vanity top that has yellowed. I don't want to have it removed since it is incorporated into my glass shower walls/door. I have seen a 1/4 in granite tile system by Benissimo that comes complete with the bullnose attached. I want to know if there is a thin set that I could use that would attach the granite tiles to the cultured marble. I can sand off the gel coat on the marble before applying, but am unsure if the thinset/mortar will stick to the polymer based cult. marble. Any ideas or anyone with experience doing this?
Thanks a bunch!