How Do You Polish Pre-Cast Concrete Countertops?

If you own a pre-cast concrete countertop, you'll want to maintain its beauty, especially after all the trouble installation involved. You can polish that stone just as you would marble. Expose the aggregate by using 50-grit ultra-speed polish pads. If you just want to polish the crème, a 400-grit pad will do. Wear an apron so you don't get soaked as well as dirty. Start with the 50-grit pad for exposed aggregate and work your way up through the various grits until you achieve the look you want. The larger the grit number, the gentler it is. Keep the surface of the pre-cast concrete countertop wet while you polish. This reduces dust and cools the resin in the polishing pads. If the pads do not cool, they become soft as you use them, and the diamonds separate from the pads. Create a super sheen with 800-grit polish pads. Keep the polisher level to reduce swirl marks. Holding the head of the polisher with one hand as you polish your countertop also helps.  more