Alpha, the manufacturer of the €œoriginal ceramica polishing discs",has created the next generation of polishing discs, ceramica ex. With the proliferation of engineered stones, alpha recognized the need for polishing discs that could work effectively on these challenging new surfacing products. After extensive research and development, alpha established the diamond and bond formula best suited for today€s engineered stones, the result: ceramica ex. Our research determined something else; ceramica ex works extremely well on all natural stones, too. As a result, ceramica ex can fulfill all the needs of all stone fabricators; one set of polishing pads that can produce a high quality shine on granite, engineered stone, quartz surfaces, marble (including hard to polish black and green),terrazzo and porcelain tile and slab. Ceramica ex pads work quickly to achieve desired results.