According to relevant surveys, at least half of the households will choose a half-package form when they decorate, that is, the owner buys ceramic tiles, sanitary ware, paints and other materials. However, due to the asymmetry of market information, consumers often encounter some traps when purchasing materials. Mastering a certain amount of purchasing knowledge requires little time and effort, but it can help us to buy genuine and satisfying products.
Take the example of buying ceramic tiles. Just choosing a tile brand and product color is not enough. If you want to buy a tile without losing money, you need to know something like this:
(1) Checking the regularity of the storefront
Some very good brand stores often sell fakes, or some stores may not have authorized distribution by manufacturers, but they are still selling the previous stocks, no matter what kind of building materials market or large-scale stores. Check with the manufacturer before buying.
(2) Inspection of product packaging and labeling
The product box should have the name of the factory, the address of the factory, the name of the product, the telephone number of the after-sales service, the specifications, the quantity, the trademark, the date of manufacture and the standards implemented, so as to avoid the purchase of “three no†products.
For porcelain bricks, it is necessary to check the CCC certification mark, and the interior design and decoration of the ceramic tile, it is advisable to select the product whose radionuclide meets the requirements of category A. Take the gold medal Tianwei ceramics as an example. The package not only includes the above information in detail, but also marks the ISO9001 international quality management system certification, ISO14001 international environmental management system certification, and China environmental labeling product certification.
(3) Product appearance
Good quality tiles should be smooth and delicate, high-gloss glazed tiles should be crystal clear, matt and semi-matt glaze should be soft and reflective. Under sufficient natural light or fluorescent light, the bricks are placed vertically at a distance of 1 m to observe the surface defects such as glaze, cracks, smoke, falling dirt, glaze bubbles, spots, and bumps.
At the same time, it depends on whether the product size is standard. The diagonal can be measured with a caliper. Irregular tiles are not straight when paved, which is not beautiful. The patterned pattern of the tile should be delicate and realistic, without obvious defects such as lack of color, broken line and misalignment. The shading and trademark of the back of the high quality ceramic products are clear and complete, with little glaze or defects.
Take the gold glazed glaze "glazed cool angel" as an example. From the appearance, not only the surface is crystal clear, the texture is warm, and the polished brick is smooth and bright, and the pattern is rich and the color is beautiful. Seriously feel the appearance of the product.
(4) Inspection of tile density, hardness and quality
It can be beaten, and the sound is crisp and the porcelain density and hardness are high and the quality is good. Lightly tap the floor tile with your hand. If the brick emits a "beep, bang" sound, it indicates that it has insufficient sintering and the texture is less. If a slight "beep" sounds, its texture is relatively hard compared to the previous one.
Of course, you can also scrape the tile glaze with a hard object. If you leave traces, it means poor quality. In addition, you can see with the naked eye whether there are pinholes, pinholes are easy to accumulate dirt.
(5) Checking the water absorption rate and friction coefficient of the tile
The lower the water absorption rate, the higher the inherent stability of the tile, and the more suitable it is for the space with high moisture or moisture content, and no problem such as dark spots. The water droplets are on the back of the tile, and the water is diffused and the temperature of the tile is slow.
If the bricks are mainly used for interior wall surfaces, such as kitchen (kitchen decoration renderings) and bathroom (toilery renovation renderings), high water absorption products should be used. While checking the water absorption rate, it is also necessary to check the friction properties of the product, such as paving the floor, and the product requires a high coefficient of friction and a high degree of wear.
(6) Tile flatness
The sides are straight, easy to lay and the effect is good. Take out any four or more tiles from the box and compare them on a flat floor. Whether the four bricks are flat and consistent, whether the tiles are diagonally embedded.
You can look at a set of national standards. When comparing tiles, the national standard for deformation (edge ​​curvature) is: 0.2% porcelain tile (maximum deviation 2.0mm); other porcelain tiles are 0.5%, color glaze The brick is 0.5%; the glazed tile is 0.5%-0.3%.
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