The quality of ceramic tiles can be defined both by the values indicated on the packaging and by eye, to detect marriage. As a rule, the manufacturer must indicate on the box some signs determining the quality of the tile. On the box or on one of the edges of the tile, the manufacturer using the paint must indicate the grade of tiles. Here, in red, products of the first grade, blue products of the second grade are determined, and the third grade tile is green. The image of the foot or hand indicates the use of tiles. The foot depicted on a black background means the use for floors, and the hand is used exclusively for walls. If the image of the foot is located on a light, shaved background, this tells us that this tile with a high level of wear resistance. By the way, now it is also very popular to pray paths with your own hands.
And the snowflake means increased cold resistance. Flame numbers indicate the amount of firing of this tile and the more there are, the better. This means improved indicators of certain indicators. It is also worth paying attention to the tile itself. To identify such types of marriage as an irregularity of edges, bulge, concave, etc. D. possibly leaning, two tiles against each other with the front sides. With high quality and complete lack of marriage, the gap between the surfaces of the tiles will be minimal. The edges of the tiles are checked in the same way. Do not forget to check the tile for scratches or cracks.