Look at the specific physical store and quality

There are seven methods to identify the quality of ceramic tiles, which can be comprehensively referenced:

1. Look at the grade identification.

Ceramic tiles are divided into five grades, first-class, second-class, third-class and off-grade. As the prices vary greatly, we need to compare them carefully. In addition, when purchasing, we should also pay attention to whether the signs, specifications and color numbers on the tiles and the packaging boxes are consistent, and whether the product certificate, trademark and quality inspection label are clear.

Step 2 read the instructions

Standard size is not only beneficial to construction, but also can reflect the decorative effect. Good specification deviation is small, uniform after paving, straight brick joints and good decorative effect. Products with dimensional error greater than 0.5 mm and flatness greater than 0. 1 mm will not increase the construction difficulty, and the effect after decoration will be poor.

Whether the size is up to standard can be judged by the target. Put the brick on the plane and see if its four sides are completely consistent with the plane, and at the same time see if the four corners of the tile are at right angles. It is good to report that there are no defects such as concave-convex, bulging, warping, etc., and the error of side length is not more than 0.2-0.3mm, and the error of thickness is not more than 0.1mm.

The higher the accuracy of the side length of ceramic tile, the better the effect after paving. Buying high-quality tiles is not only convenient for construction, but also saves working hours and accessories. Measure the size and periphery of each tile with a tape measure, and the one with high accuracy is the top grade.

3. Difficulties

Ceramic tiles are high-grade, with good hardness, strong toughness and not fragile. Scrape each other with the edges and corners of tile fragments to see whether the broken fragments are fine or loose, brittle or soft, leaving scratches or loose powder. If the former is top grade, the latter is poor quality.

Whether the size is standard or not is the key to judge the quality of ceramic tiles. Use a tape measure or caliper to measure whether the diagonal and four sides of the tile are consistent in size and thickness. A good ceramic tile has a crisp sound, indicating a high porcelain content. If the sound is "click" and stubble breaks, it means that there is a crack in the brick. Good tiles are easy to be installed by the master, and the installed effect is standardized.