How to identify natural stone dyeing (additive)?
Aug 21, 2020
1. Dyed stone generally uses stone with poor quality, large porosity, and high water absorption, which can be distinguished by percussion.
2. The back surface of the stone coated with engine oil to increase the gloss is greasy.
3. The color of dyed stone is gorgeous, but unnatural.
4. The level of dye penetration can be seen at the fracture of the board.
5. The gloss of the same variety of dyed stone is lower than that of natural stone.
6. Stones that are waxed to increase the gloss, burnt with a match or fire, the wax surface will be lost, showing its true appearance.
7. Although the coated stone has high gloss, the strength of the film is not enough, it is easy to wear and scratches on the light.
