COMPACT QUARTZ ROYAL STONE consists of 93% natural quartz (a naturally hard rock and scratch resistant) and 7% high quality polymer pigments and resins. Its production results from a process of high technology, which includes compression under intense vibration, vacuum and pressure. The result is a product resistant to scratches, heat and cleaning products. In addition to these advantages, it is a non-porous, anti-bacterial and maintenance-free product. ROYAL STONE gives your products a 15 year warranty for domestic applications.