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As the name implies, glazed tiles are the tiles whose surface is processed glaze firing. Glazed ceramic tile is divided into two types: one is ceramic glazed tiles, fired by clay, which has high water absorption, relatively low intensity, and back color is red; one is porcelain glazed tile, made by clay, low water absorption, the intensity is relatively high, and the back color is gray. Depending on the shiny, they are often classified by light glazed tiles and matt glazed tiles. The former is suitable for make "cleaning" effect, and the latter is suitable for the making "fashion" effect. Seattle glazed porcelain tiles are the most common ceramic tile species in decoration. Due to the rich color pattern, and strong anti-fouling ability, glazed porcelain tiles are widely used in wall and the ground. As decorative materials, people generally pay more attention to the decorative properties of glazed ceramic tiles, which is concerned about the quality of its appearance, such as whether the surface has defects impacting the decorative effect, whether the dimensions meet the requirements, whether the surface is smooth, whether there is warping, whether the corner is vertical and so on. In fact, in order to ensure that glazed tiles to keep decorative surface durable after laying and not destroyed by a variety of factors in the environment, glazed tiles must also have the necessary physical and chemical properties. 1. Detect dense rate and water absorption of tiles Pinch a corner of the tile and lift tiles, gently tap the tiles with a metal object, listen to the sound. In general, the crisp sound means high density, high strength, small water absorption, and the tiles are good quality; conversely the tiles with smaller sound dumb is low density, low strength, large water absorption and poor quality. 2. Inspect the surface of glaze by eyes Qualified glazed tiles should not have cracks, mezzanine and glazed cracking phenomenon; the back of the tiles should not have a bump 1/2 thick of tile; tile color should be consistent; observe 1 meter away from the tile, good glazed tiles should have no peeling edges, ripples, missing glaze, brown eyes, the front surface defects, etc.  3. Compare flatness and squareness Grab two tiles, stick face to face together, see if there is plumping and warp. Then relatively rotate the tile 90 degrees and see whether neighboring still coincides. If the tiles are glued tightly, and have no plumping or warp, and still surrounding is substantially coincident after the rotation, it can be considered that the squareness and flatness for the investigated glazed tiles is quite good. 4. Using a ruler to measure the size error Good glazed tiles have strict requirements for the range of error, in general, the length and the width error should not be more than 0.8mm plus or minus, the thickness error plus or minus 0.3mm plus or minus. When checking, you should random sample, which is sampled in different boxes and check, the number is about 10% of the total, but not less than 3. 5. Request a factory inspection report Brand name products sold by regular China glazed tile manufacturer have the factory inspection reports. At the time of purchase, we should pay attention to ask for and carefully check whether the certificate and objects match. This article comes from: http://www.chinawoodenflooring.com/index.php/buy-glazed-porcelain-tiles.htm
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