Eastern Marble & Granite Supply has introduced the Alpha Ceramica EX, a new generation of polishing discs. The Ceramica EX uses 4-inch discs that can polish a majority of materials found in the building industry. According to the company, marble and granite can be quickly polished with ease as well as terrazzo, porcelain, ceramic tile, engineered stone and quartz surfaces. The discs are VelcroÂ¿-backed and work on most hand-held wet polishing equipment. The Ceramica EX provides cost effectiveness in both the life of the disc and the overall cost of the polishing, Eastern Marble & Granite Supply reports.