Marble home testing

A common test: a drop of ink on the back of the stone, such as the ink quickly scattered around the leaching, that is, the internal particles of the stone is loose, poor quality; but if the ink droplets do not penetrate, then the stone is dense, good quality.

This is actually a simple test of the water absorption of the stone. If the ink droplets do not penetrate, it may indicate that the texture of the stone is denser and the water absorption rate is lower. Marble is generally coated with a protective agent to prevent the penetration of stains. Even if the customer sees that the ink droplets are not permeated, it is very likely that the protective agent is working, not the performance of the stone itself. In addition, if the water on the back of the stone is in the form of water droplets, it means that it is difficult to absorb water after it is painted with a protective agent, and it may cause it to fail to adhere to cement. Therefore, the smaller the water absorption rate of the front surface of marble, the better. It should be considered whether the backside can adhere well to cement adhesives.

Common test two: vinegar will react with the marble to produce calcium carbonate, so dropping vinegar on the marble will cause the stone surface to change and become rough, which can be seen is not the real marble.

This test is plausible in principle, but because acetic acid itself is weak, so the test requires a longer reaction time, the consumer can not see the results for a time, with the effect of thinning ** is more obvious.

Common test 3: Tap the marble, and pay attention to the sound of the sound. If the sound is crisp, it means that the product is of good quality. There is no crack in the interior evenness. If the sound is rough, it will prove that there is a crack in the marble and the texture is loose.

This test can only show that the texture of stone is relatively hard, brittle, and high strength, and can not be used as a standard to judge whether the stone is good or bad, because the sound produced by stone has a certain relationship with its own species, size, this kind of high intensity Marble is more suitable for the ground.