Your site is fantastic! We purchased a new home 4 years ago with Uba Tuba Green tile Granite. Our installer also told us it was OK to use an express car wax on our Granite. I have only done this a couple of time (like when family is showing up and Black Granite not do glossy). I seal the Granite at least once a year (or when I notice glass rings) I also use granite Gold daily cleaner. Will the car wax harm my granite?
Oh, did you get bad advice! There are several reasons that Car Wax is not good from granite. First, if it is petroleum based, it could stain the granite. Second, if it is silicone based (most likely), it will leave a topical coasting that will wear unevenly and leave you with a blotchy sheen. It also can darken the granite unevenly because the different minerals have different degrees of porosity. I recommend that you remove the car wax in order to achieve a long lasting, low maintenance surface.
First try a home remedy – liquid dish washing soap – full strength. Let it sit on the countertop for 5 minutes, then use a green scrub pad and work the wax off it that. Let it dry and sealer it will a premium granite sealer.
Then refer to my page titled, “Granite Sealer and Maintenance” for easy care instructions.
If the wax still does not come off, you need to use Acetone (hardware store). This will rip the wax off, but not harm your granite. Apply sealer after that.