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The more white the body, the better of tile quality ? The thicker the tile body, the more solid the tile is ?

- Jun 25, 2018 -

At the stage of buying tiles for decoration, the owners will receive a variety of arguments on how to distinguish tiles. The more white the bricks, the less impurities; the thicker the bricks, the more solid and unbreakable; the lower the water absorption of bricks, the lower the tile quality. The better ... ... all kinds of "learning" on buying bricks, really credible?


1. Is the whiter the tile body, the better of tile quality ?

Many people think that the whiter the tile is, the better. The purer the white, the less impurities in the brick, the better the quality.



There are several factors that affect the whiteness of the tiles :

● Raw materials. Different raw materials origin will affect the whiteness of the brick. For example, the clay in Guangdong is white and the soil in Jiajiang is yellowish. With the same process and flow, the blanks made from bricks from Guangdong are whiter, while those from Jiajiang are reddish. Even after the trash removal process, the tiles from Jiajiang are washed out. The body is not as white as Guangdong tiles.

● Impurity removal process. Before the tiles are fired, the raw materials are decontaminated and some colored gold such as iron ions are filtered out. The finer the cleaning process, the resulting green body will be whiter.

● Add zirconium silicate. Tile manufacturers use zirconium silicate in the mud to increase the whiteness of the green body.

2.The lower the water absorption, the better the tile?

After the renovation, the tiles are cracked and exfoliated due to high water absorption; a certain brand has failed to meet the quality requirements due to the unsatisfactory water absorption rate of the product. Many people began to believe that the lower the water absorption rate of tiles, the better. Low water absorption as a selling point.


The water absorption rate is an important indicator for evaluating the inherent quality of the ceramic tile, but it is not an absolute indicator and blind pursuit of low water absorption rate may also cause problems.

Different spaces have different requirements for water absorption, and the way of laying will be different.

Tiles with high water absorption have a relatively loose density and are prone to water absorption. After thermal expansion and contraction of ceramic tiles, cracks may occur on the surface and even the entire tile peels off. However, if the water absorption rate is too low, it is easy to fall off due to improper paving. Traditional plastering methods use cement mortar, and the moisture contained in the cement slurry can be absorbed and cured by the tiles, thus forming a tile grip on the wall. Once the water absorption rate of the tiles is too low, this gripping force cannot be formed and the chance of the tiles falling off is greatly increased.

In related standards, the water absorption rate of ceramic products is greater than 10% of its own weight. Therefore, when consumers buy wall tiles or tiles, do not believe that the lower the water absorption, the better.

3.Back  will affect the quality?

Brick shading, also known as back graining, refers to the imprinting of ceramic tiles after they have been pressed into shape. The back lines of different brands and products are not the same. Many people think that the texture of the tiles is different and the quality of the tiles is different.



In the production process, the backprint pattern is generally determined by the press mold. So from the pattern of back lines can understand the press equipment and parameters used in tile production.
Because the back press mold of the press can be unloaded, there are special manufacturers to customize the mold in order to achieve the effect of differentiation, so that the tiles appear different special back lines, and even printed their own brand LOGO.
Therefore, the back grain does not directly affect the quality of the tiles. Even if the products are produced under the same production line, the back lines may not be the same due to the replacement of the press mold.

4.The thicker the tile body , the stronger it is?

Consumers generally believe that thickness is an important factor affecting the quality of tiles. Thicker tiles are more durable, more resistant to pressure, and less susceptible to cracking and chipping during use, while thin ceramic tiles appear to be more susceptible to damage.


It is not that the thicker the tile body , the stronger the tiles is.

"Ceramic tile" new national standard ceramic tile thickness limit is not more than 13.5mm thick, which also shows from the side of the ceramic tile thickness below 13.5mm, its flexural strength, wear resistance and other indicators are still in line with standards, In fact, this restriction is intended to promote the thinning of ceramic tiles. With the increasing demand for energy saving and consumption reduction, green ceramic thin ceramic tiles and ceramic thin plates have gradually become push products, but many consumers still have doubts about thin ceramic tiles.

From the perspective of physical properties, although the thickness of thin ceramic tiles and ceramic thin plates is only half that of traditional ceramic tiles, the strength of the products is not inferior to that of conventional tiles and is even stronger than traditional ceramic tiles in toughness. In terms of production, due to thinness, Ceramic tiles and ceramic plates save about 50% of raw materials compared to traditional ceramic tiles, thus reducing the overall energy consumption by nearly half. They also make a positive contribution to energy conservation and emission reduction. In terms of use value, ceramic tiles are often used for paving. On the ground and on the wall, due to the full contact of the bricks with the ground when paving the floor, its flexural strength is related to the impact force and has nothing to do with the thickness, and the thin ceramic tile also saves space. If used on a wall, thin ceramic tiles are smaller, lighter, and more secure.

The strength of a tile is related to its compressive and flexural properties, and its strength depends on its density. In this regard, consumers should not focus on thickness when choosing tiles, but should pay attention to density. In the same size and same type of product, the heavier the quality is, the higher the tile density is. You can also identify the density of the tiles by looking at the fineness of the particles on the back of the tile. In general, the finer the tile particles, the higher the density, and the higher the breaking strength.

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