First, glaze finish, brightness
In the purchase of ceramic basin, first with the ordinary white ceramic basin, should focus on the glaze smoothness, brightness. Glazed finish and good brightness good, pure color, not easy to dirty fouling, easy to clean, long-term use is still bright as new.
Two, water absorption index
The so-called water absorption, is to judge the ceramic products on the water absorption and permeability of good or bad indicators. It is understood that the water will be sucked into the ceramic, ceramic will produce certain expansion, ceramic basin is also so, it is easy to make the ceramic surface of the glaze due to expansion and cracking. Thus, the lower the water absorption, the better the quality of ceramic products. According to the relevant standards of national water absorption standards, sanitary ceramics with water absorption below 3% are high-grade ceramics.
Three, process, pattern, color
Most of the basin are used in high-end hand-painted color ceramic glaze technology, which is currently the best ceramic technology, so buy ceramic basin should pay attention to distinguish, to prevent illegal dealers in overglaze underglaze posing as genuine. Underglaze decoration pays attention to fine brushwork freehand brushwork, it must be drawn by hand, not printed, applique, and the color should be bright.