What is the standard water absorption of tiles?
According to China's national standards for testing tiles, tiles according to the different water absorption, divided into porcelain brick (water absorption E ≤ 0.5%), fine stoneware tile (water absorption 3% ≤ E ≤ 6%), stoneware brick (water absorption 6 % ≤ E ≤ 10%), ceramic brick (water absorption of 10% or more) and so on. The test method should be tested on the back of the brick body.
The moisture absorption of the tiles is related to the breaking strength, abrasion resistance and gloss performance. Generally speaking, the lower the water absorption of tiles, the better the tiles, the higher the product strength, wear resistance and gloss performance is better, the product is not prone to cracking or peeling. And high water absorption of the tiles after the thermal expansion and contraction will lead to tile surface cracks and the overall tile peeling, especially in the choice of toilet paving tiles more attention to this problem.
To determine the size of the water absorption also has a simple method, the water absorption rate, also known as seepage rate, the simplest test method is to drop some water on the tile to do the experiment, after a few minutes, wipe the tile surface of the water, if not left any Traces, to prove that the water absorption of tiles is very low. If you leave the water mark tiles discoloration, then the ceramic tile water absorption is higher.
It depends on which tile is. General magnetic bricks (polished tiles, better external walls, etc.) standard water absorption is less than 5%. There is also a completely impermeable interior wall with a standard water absorption of less than 10%. A little bit of the interior wall (permeable one) is greater than 10%. Magnet is generally better in water absorption.
National standard: porcelain brick water absorption E ≤ 0.5%, ceramic brick water absorption E> 10%
The water absorption of the tiles refers to the percentage of the weight of the inhaled water after the mouth of the product is filled with water. It can directly describe the density of the product and affect the moisture resistance of the product.
So you may wish to live on the spot when the test tile water absorption, can be a cup of 150 ml of water poured on the back of the tile, after 3 seconds, if the water will all penetrate the brick, then the tiles of water absorption faster Rate E> 10%, then it also shows the quality of the tile is poor. Therefore, the home improvement to choose the water absorption of the tiles, because the lower the water absorption of tiles, tile on behalf of the inherent stability of the higher.
