China Silver Galaxy Blue Marble slab 18mm highly polished unique patterns low price

How to check the quality of marble slab:

Common test one:

drop a drop of ink on the back of the stone,if the ink scattered around quickly, which means that the particles inside the stone are loose, and the quality is poor. But if the ink drops do not penetrate, it indicates that the stone is dense and the quality is good.

The inimosmosis of the fruit and ink droplets may indicate that the texture of the stone is more compact and the water absorption is low. The marble generally brushed a layer of protective agent to prevent stains from penetrating. Even if the customer sees ink drop impermeable, it is likely to be a protective agent, not a manifestation of the property of the stone itself. In addition, if the stone on the back of the water beads, which coated with protective agent, it is difficult to absorb water, may also lead to the cement and can not fit, so that the marble positive bibulous rate is small is better, but also should consider whether the back and cement adhesive bond well.

Common test two:

Vinegar will react with marble to form calcium acetate. Therefore, dropping vinegar on marble will cause the surface of stone to change and become rough, so we can see whether it is real marble.

This test is reasonable in principle. However, because acetic acid itself is weak, it requires a longer reaction time. Consumers can not see the result for a while. The effect of dilute hydrochloric acid is quite obvious.

Common test three:

Hit the marble, and pay attention to the sound. If the sound is crisp, it shows that the product is of good quality, inside and meticulous without cracks. If the sound is rough and dumb, it will prove that there are cracks in the marble and loose texture.

This test only shows that the stone texture hard, brittle and high strength, and can't be judged as stone quality standards, because the sound of the stone itself, the size of all varieties have a certain relationship, the relatively high intensity of marble is suitable for ground.

Galaxy Brown Marble slab detail: