How to buy ceramic glazed wall tiles?
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Ceramic tiles According to GB/T 9195, National Standard for Classification and Terminology of Ceramic Tiles and Sanitary Ceramics, the water absorption rate can be divided into five categories: 1. Porcelain tiles (water absorption less than 0.5%), which is commonly known as vitrified tiles After surface polishing, it is also called polished porcelain brick. It is widely used for floor and wall decoration of various buildings, and is also the main material for indoor and outdoor decoration. 2. Ceramic tile [0.5% <Water absorption rate ≤ 3%]; 3. Fine tanning brick [3% <Water absorption ≤ 6%]; 4. Tanzanite brick [6% <Water absorption ≤ 10%.]; Water absorption In the following 3% mostly used for exterior wall and ground decoration, water absorption rate of 3% to 10% is mainly used for indoor floor decoration, and more for the bathroom, and supporting the use of internal wall tiles; 5. Ceramic tile water absorption> 10%; Generally known as the interior wall glazed tile on the market, it is widely used for interior wall decoration of residential buildings, hotels, restaurants, public places and other buildings. It is one of the main materials for interior decoration.
When decorating the bathroom, in order to purchase a satisfactory interior wall glazed tile, it is advisable to make scientific choices in terms of investigation, look, hearing, test, and comparison.
Check and check the product packaging box for factory name, site address and product name, specifications, grade, quantity, trademark, production date and implementation standards. Check whether there is a factory certificate, whether the product is damaged, and whether the quantity and quality of the product contained in the box are the same as those on the package.
Second, the ceramic tile glazed with good quality should be smooth, delicate, shiny and beautiful, and the matt glaze is soft and comfortable. Under sufficient natural light or fluorescent lighting, the bricks should be observed vertically at a distance of 1 meter. No obvious glazed defects should be visible, and the product has no color difference. Patterned brick color pattern should be fine, there is no obvious lack of color, broken lines, dislocations and other defects. Good product size deviation is small, you can put a group of products vertically on a plane to see if there is no uneven phenomenon; see the flatness of the brick. The ceramic tile can be laid flat on the plane and observed directly with the naked eye. The plane of the ceramic tile is warped. The straight edge of the brick is measured with a ruler to measure the seamless gap. This product has high deformation-free regularity, convenient construction, and smooth brick surface after laying. Beautiful.
Listen three times, you can gently tap the ceramic tile, listen to the sound, better quality products, listen to the sound crisp ceramic tile density and high hardness, good quality. Inferior products will produce an "empty" sound when struck.
For four tests, ceramic glazed tiles with low water absorption rates should be selected to measure the water absorption of the tiles. The lower the water absorption rate, the higher the inherent stability of the tiles and the more suitable the space with high humidity or moisture content (eg Bathrooms, kitchens, etc., will not produce black spots and other issues. The simplest detection method is to use a glass of water to pour on the back of the tile. The water stain spreads quickly, indicating that the water absorption is high. On the contrary, it is lower. The slower the water absorption rate is, the smaller the water absorption rate is, the better the inner quality is, and the product is more durable. The better.
Five, to shop around, than the ratio of internal quality. Ceramic tiles of the same specifications have low weight and high water absorption, and their internal quality is also good. After a certain understanding of the product, after a comprehensive comparison of the product's brand, quality, price, service and other aspects, and then determine how to buy.