We treated our granite kitchen countertops with the products the installer left for us. Our countertops are cream, black and some gray, sounds ugly, but they were very nice. Now, after treating them they now have a yellowish film. I just got off the phone with the fabricator and he insists that I used something else on them and I did not. Did anyone else have this type of problem? He advised to use mineral spirits and I can tell you he had a real attitude.