This material is made from an atomized mixture of: quartzes, feldspars, clays, and kaolins, pressed (600kg/cm²), sintered at 1300ºC, and is homogeneous throughout its thickness. The elements resulting from this procedure belong to the CI UGL “completely vitrified” group (UNI EN 176 or Bla ISO 13006 regulations). The requirements of the following material must present the average values: width and length, rectilinear and orthogonal measurements and planarity: ± 0.2% (ISO 10545.2 testing method regulations); thickness: ± 2% (ISO 10545.2 testing method regulations); water absorption: 0.04% (ISO 10545.3 testing method regulations); deep abrasion resistance: 120 mm³ (ISO 10545.6 testing method regulations); flexion resistance: 55N/mm² (ISO 10545.4 testing method regulations). They must also be resistant to chemical aggression, staining, and frost.