AStA Brochure

ABOUT THE PRODUCT THE PRODUCT The agglomerated stones (also called “engineered stones”) are industrial products manufactured from a mixture of aggregates, mainly coming from marble, quartz, granite and other natural stones, in large amount (up to 95%); chemical additives functional to the process, pigments and a binder, generally polyester resin, added in the minimum quantity just to assure the complete bonding between filler and particles. The production consists of a mixing phase followed by molding under vacuum by compression and simultaneous vibration of the mixture. A subsequent hardening phase, conduced at room temperature or at medium temperature in suitable kilns, allows to the mixture to reach the final stone consistency. The products are realized in forms of blocks or slabs, which are transformed in finished slabs for counter tops, tiles for floorings and wall coverings and other architectural elements. 8