rain

Hardness. The hardness of  tiles  determines the key performance of  tiles , especially  floor tiles . Hardness: 1-7, polished tile general 7, throwing glaze is generally 5-6, Microcrystalline stone is generally about 5, porcelain is generally 3-4, etc. Certainly, the determination of  tiles  hardness has a great relationship with production, such as firing time, temperature, press tonnage, material fineness.  Floor tiles  are larger than  wall tiles , and  polished tiles  are more flexible than  glazed tiles design . The greater the hardness, the stronger the durability of  tiles . However, the hardness is also large, and the processing is difficult. High destructive strength. Good strength of  tiles  crack resistance, the national standard  tiles  compressive strength is not less than 35Mpa, 1200N, equivalent to 120 KG people standing on the foot size of the area, the higher the  tiles ...