Professional Organizations Caution: Master Craftsmen At Work Summit Industrial Flooring has been a proud member of the Concrete Polishing Association since nearly its inception. Summit’s founder, Keith Powell, is one of just a handful of experts in the United States to achieve the Master Craftsman designation. In addition, Summit is a Platinum Installer for Sherwin Williams/General Polymers, Metzger McGuire, Prosoco and Retroplate. Through rigorous education and hands-on training, Summit is proud to be in a limited group of companies qualified to use these fine products.