C.L. Industries Hydrazzo HYDFRNCHRVR Polished Marble Pool Finish French Riviera 80 lb an industry first, this state-of-the-art finish combines a silky smooth texture with the proven durability of exposed aggregates. Offering unique color selections and a natural resistance to spot etching, topical stains, permanent scale, and algae adhesion, Hydrazzo® delivers timeless beauty and easy maintenance.