The brand is just a front for verification. Some big problems can be detected.

The next choice still depends on yourself. It is recommended that you learn to detect ceramic tiles yourself.

Inspection method:

1. If it can be tapped, the crisp sound indicates that the ceramic tile has high porcelain density and hardness and is of good quality

(Gently tap the floor tile with your hand , if this brick makes a "pop, pop" sound, it means that its sintering degree is not enough and its texture is inferior. If it makes a slight "thump, pop" sound, its texture is harder than the previous one)

(In fact, the method is very simple. Knock it with your hands. High-density ceramic tiles will have a crisp and fragrant sound of glass. Low-density ceramic tiles will make a dull sound of bricks and tiles.)

2 . Measure the water absorption rate of the ceramic tiles. The lower the water absorption rate, the higher the inherent stability of the ceramic tiles, and the more suitable the ceramic tiles are for spaces with high humidity or moisture content (such as bathrooms and kitchens), and will not cause problems such as black spots

3. Pour a cup of water on the back of the ceramic tile. If the water stains spread quickly, it means the water absorption rate is high, otherwise it is low

4. You can use a hard object to scrape the glaze of the ceramic tile. If traces are left, it means the quality is poor

5. Check whether the color of the tiles is clear and see if there are pinholes with the naked eye. Pinholes can easily accumulate dirt

6. The flatness of the tiles, the sides are straight, easy to lay, and the effect is good (visual inspection method, place the floor tiles on a flat surface to see whether its four sides are completely consistent with the flat surface, and also check whether the four corners of the tiles are all right angles, and then Place the ceramic tiles among ceramic tiles of the same variety and model to observe the degree of color difference)

7. When choosing floor tiles, you often see the material dealer stepping on the ground hard. This only means that the bottom of his floor tiles is flat. It cannot be said that

the quality of his ceramic tiles is good

8. Mark the floor. Due to the density of the poor ceramic tiles, they are exactly like a piece of chalk. imprint.

9. The first point is "seeing". Take a look at the level. First-class products are the best, while third-class and substandard products are worrying; secondly, look at the appearance and glaze

surface. Good ceramic tiles have no problems such as bumps, bulges, or warping corners, and have straight edges and flat surfaces. The glaze surface is smooth and clean, without particles or varying shades of colors

; look at the pattern three times. The pattern should be delicate, without obvious color leakage, misalignment, broken lines or different shades.

10. The second point is "listening". Use the thumb, index finger and middle finger of one hand to hold the corner of the ceramic tile, hang it down easily, and tap the middle and lower part of the ceramic tile with the index finger of the other hand. If the sound is clear and pleasant, it is a top quality product; if the sound is dull and astringent, it is a poor quality product.

11. Cut out fragments of ceramic tiles (usually you can ask the store for broken pieces for inspection) and look at the fractures. The broken parts are fine, hard and brittle, and the color is the same as the top grade.

12. Drop water on the back of the ceramic tile. The ceramic tile that soaks slowly after the water spreads has a higher density and is considered to be of higher quality.

13. In addition to the color you like, you also need to choose carefully: first, take out any four tiles from the packaging box, place them on a flat ground and compare them to see if the four tiles are flat and consistent. Whether the diagonal corners of the tiles are inlaid. Then tap the surface of the ceramic tile with your palm and listen to the sound: the sound of good ceramic tiles is relatively low; the sound of bad ceramic tiles is bright and has obvious echo. Of course, judging whether it's good or bad based on the sound is relative. However, the first comparison method should not be underestimated. The biggest difference between domestic and imported bricks lies in the consistency of specifications of ceramic tile products.

14. Take a look at the glaze of the tiles. The surface of the tiles should be smooth and delicate; high-gloss glazed tiles should be crystal clear and shiny, while matte and semi-matt glazes should be soft and reflective.

Evenly. You can try to scratch the surface of the tile with a hard object. If scratches appear, it means that the glaze is insufficient. After the glaze on the surface is polished

the tile surface will easily hide dirt and be difficult to clean. Second, check whether the size of the product is standard. You can use calipers to measure the diagonal. Irregular tiles will not be in a straight line during paving, causing unsightly appearance.

Third, check the deformation. You can directly observe it with the naked eye to see that the edges of the product are straight and flat.

In this way, the deformation of the product is small, the construction is convenient, and the brick surface is smooth and beautiful after paving. Fourth, look at the pattern. The color and pattern should be delicate and realistic, and there should be no obvious defects such as lack of color, broken lines, misalignment, etc.

15. Look at the packaging. First, check whether there is the factory name, address and trademark to avoid buying "three noes" products. Secondly, look at the product quality level and water absorption rate. Generally speaking, products with lower water absorption rates have relatively higher strength and better frost resistance. If users purchase ceramic tiles mainly for flooring or outdoor walls, they need to purchase products with lower water absorption, such as porcelain tiles or stoneware tiles. If the user purchases bricks mainly for indoor walls, such as kitchen and bathroom walls, they can choose products with higher water absorption, such as ceramic bricks. However, it should be pointed out that this type of product has relatively high requirements for resistance to cracking, thermal shock resistance, pollution resistance and chemical corrosion resistance. Third, look at the friction properties of the product.

If users purchase ceramic tiles for flooring, they need to check the friction coefficient and wear level of the product.

16. Look at the surface quality.

First of all, check whether the color is beautiful and pleasing to the eye and meets your own aesthetic taste. Secondly, about 1 meter away from the sample, under certain lighting conditions, observe whether the sample has surface defects such as missing glaze, cracks, smoke, dirt, glaze bubbles, spots, bumps, etc.; about 3 meters away from the sample, observe whether there are any surface defects on the product surface. Color difference in order to roughly grasp the gloss of the product. Third, tap the sample lightly with your hand or hammer. If a metallic echo appears, it indicates that the product has a solid structure; if a muffled sound appears, it indicates that the product may have structural delamination defects.

17. Look at the appearance of the product. First, check whether the actual size of the product matches the marked working size. Secondly, look at the degree of deformation of the product, whether the surface of the product is flat, whether the corners are straight, etc.

18. Six methods for detecting the quality of ceramic tiles

1. Put a few drops of tea juice or water on the back of the tiles, wait for a few minutes, and then check the degree of inhalation and diffusion of the water droplets. If it does not absorb water or Low water absorption means good quality.

2. Knock on the tiles and listen to see if the sound is crisp. The crisper the sound, the higher the porcelain degree, density and hardness.

3. Scratch the tiles with a sharp object to see if there are scratches. If there are scratches, it means that the glaze is poorly applied and may cause people to slip. After the glaze on the surface is polished, the tile surface will be stained and cannot be cleaned.

4. The color and chroma of ceramic tiles are clear and natural, indicating high porcelain degree, unclear chroma and low porcelain degree.

5. When purchasing, observe with the naked eye whether there are any pinholes on the surface within one meter. If there are any, it means that the glaze is not completely integrated and it is easy to accumulate dirt.

6. Observation of warpage: Use the naked eye to see whether the sides of the tiles are straight. If the warpage is serious, it will affect the firmness of the tiles in the future.

19. Check whether the white color of the tile surface is appropriate, whether the color difference is obvious, whether there are cracks, especially whether there are dark lines, and whether the front and edge of the tile are covered with glaze. Then observe from the side of the ceramic tile to see if there are spots or defects on the glaze layer on the surface. If the above characteristics are absent, the quality of the tiles is satisfactory. The second is to listen. Gently bump two ceramic tiles. If there is a crisp sound of "dang-dang", it means that the tile is pressed tightly, with high density and good quality; If the texture of the blank is not dense or has dark lines, its quality is poor. The third is to press. Place the ceramic tile flatly facing the glass and press its four corners to measure its flatness, because the flatter the ceramic tile is, the better its quality will be, and vice versa. Finally, if consumers need to purchase ceramic tiles in large quantities, they may wish to discard one or two ceramic tiles and drop ink on the back of the ceramic tiles to observe. If the dropped ink is absorbed immediately, it means that its density is poor.

20.: (1) Dimensional error. Whether the geometric size is standard is the key to judging the quality of the ceramic tile. Use a tape measure to measure the diagonal and four-sided dimensions of the brick surface and whether the thickness is uniform. /p>

(2) Color difference, randomly unpack a few pieces and compare them one by one. Generally, it is normal to have slight differences. If it is very obvious, there is a problem. However, ceramic tiles with different production batch numbers also have color differences. Purchase It is best to buy the full quantity at one time, otherwise it will be difficult to match the same color in the future;

(3) Cracks, cracks in the underglaze layer, surface cracks;

(4) Uneven glaze layer Although it is bright, there are inclusions in or in the glaze layer;

(5) Spots, isolated and variable color spots in the glaze color;

(6) Trauma, broken pieces Or deep cracks, uneven corners.

21. Look at the appearance

First of all, according to personal hobbies and functional requirements of the room and the required on-site layout, from the specifications, color and color of the floor tiles,

Screening based on texture and other aspects.

Good quality floor tiles are of uniform size and thickness. The surface of the floor tiles is flat and smooth, with no bubbles, no stains, no pitting, and bright colors.

The colors are uniform, shiny, and the corners are smooth. No defects, 90-degree right angle, no deformation, clear pattern, good pressure resistance, not easy to be damaged.

Look at the quality.

First, take out any piece from the packaging box to see if the surface is flat and intact. The glaze should be even, bright, without spots, missing glaze, or bumps, and the edges should be regular. If the glaze is dull, astringent, or has bubbles, these are quality problems.

Depends on the level of rules. Take out a piece of brick and align the two pieces so that the gap in the middle is as small as possible. If it is a pattern brick, four pieces must be used to piece together a complete pattern. You should also check whether the pattern of the bricks is connected and clear. Put these bricks up one by one and compare

whether the sizes of the bricks are consistent. The deviation is allowed to be plus or minus 1 mm for small bricks and plus or minus 2 mm for large bricks.

Look Color difference. Take out all the bricks from a box and lay them flat on a large surface. Look at the entire effect from a distance. Regardless of white, other colors or patterns, the color should be consistent. If there are individual bricks that are darker or darker, If it is shallower, it will be ugly and affect the entire decorative effect.

Second,

Look at the intrinsic quality

Appearance is the first step, and the second step is to detect the intrinsic quality of the ceramic tiles. Because whether it just looks good or not, it also depends on the hardness, wear resistance, and water absorption. These directly determine the service life of ceramic tiles and are some very critical factors. Hardness: Take one brick and knock it against another, or knock it with other hard objects. If the sound of the brick is crisp and loud, it means the brick is of good quality and cooked well; if the sound is abnormal, it means there is heavy skin or cracks in the brick. Phenomenon: Heavy leather means that the air in the material is not discharged when the brick is formed, resulting in poor bonding between the materials and internal cracks. It cannot be seen from the surface and can only be identified by listening to the sound. Wear resistance: Wear resistance cannot be determined based on senses alone. It may depend more on some technical indicators. Among many standards, the degree of matching (also called wear resistance) is an important judgment standard. It indicates the degree to which the tiles are easily worn. Generally speaking, it can be divided into five degrees:

I degree: resistance It has the lowest wear rate and is generally used for displays, walls and places with minimal activity.

II degree: The wear resistance of ceramic tiles is greater than that of I degree. It is mainly used in bathrooms, bedrooms and other environments without hard friction.

Grade III: Moderate wear resistance, mainly used in places with a large amount of activity. Such as living room, kitchen, etc.

IV degree: higher wear resistance. It is very suitable for use in foyers, corridors of luxury homes and public places.

V degree:

There is no clear concept of the division of V degree. But in theory, it has super wear resistance and is generally used in non-home environments, such as airports, stations, etc. Water absorption: Water absorption is also a very important indicator during the use of ceramic tiles. The method to judge the water absorption rate of ceramic tiles is very simple. You only need to drop a drop of water on the back of the ceramic tiles and see how quickly it absorbs.

Generally speaking, the faster the water absorption and penetration rate of ceramic tiles, the higher the water absorption rate, and vice versa. Generally speaking, ceramic tiles with low water absorption are denser and of better quality.