I have black "slate-look" countertops in my kitchen that are OOOOLD. I used to hate them but it seems that black countertops are back in style. The problem is that they have so much wax or build-up on them that if you leave a glass sitting on them, you end up with a white spot and they're dull as heck.
Is there any way I can clean these to get all the crap off and then recoat them with something protective? I really don't want to use a poly. Some guy at work recommended something called "Sil-ac" or "seal-ac" or something. He said it's virtually indestructible and will last forever but I don't know about food safety.
Any ideas? They do sell a product at a craft store that you supposedly just pour on, but it's 9 bucks for a tiny bottle and I'm not sure how you'd do the vertical surfaces with it anyway...
Lorraine