The proportion of quartz stone in home decoration stone is higher and higher, especially the use of cabinet table top is common in family decoration, and the problems of exposure and leakage are more and more obvious, such as cracking and local discoloration. Today, I will explain the reasons for the explosion and color change of quartz stone table.
Quartz stone board is composed of more than 90% natural quartz and about 10% pigment, resin and other additives for adjusting adhesion and curing. Artificial quartz stone is formed by negative pressure vacuum, high frequency vibration molding, heating curing, its texture is hard, structure is dense, with other decorative materials incomparable wear resistance (Mohs hardness above 6-7), pressure resistance (density 2.0 g / cm3), high temperature resistance (temperature resistance 300 ℃), corrosion resistance, impermeability, without any pollution source and radiation source, green environmental protection artificial stone.
In this case, many people will wonder why quartz stone, which can withstand temperature up to 300 degrees, will cause cracking and discoloration when the heat capacity is directly placed on the table surface. It is precisely because the raw material of quartz plate contains 10% resin solvent, which is easy to expand and shrink when exposed to high temperature.
Due to the local sudden heating, if the expansion joint is not reserved during the installation of the table top, it is easy to crack or the mark on the bottom of the container changes color. The quartz stone manufacturer reminds all users to avoid the direct contact of the heat exchanger with the table surface, and the heat insulation pad should be used.
