[Hazards of quartz stone] Is the quartz stone table harmful to the human body?

Quartz stone itself is not harmful, but because it is a very popular stone, it is an excellent choice for countertop materials, so many illegal merchants have faked it and produced a large number of inferior quartz stones. These are inferior. Quartz stone is harmful.

The hazards of inferior quartz stone

1. The hazards of inferior quartz stone: it is not abrasion-resistant and easy to generate powder to cause respiratory diseases

Some unscrupulous merchants use inferior plates that contain excessive bubbles, weak penetration resistance, and insufficient hardness when processing quartz stone. The produced quartz stone is easy to break, not wear-resistant, and easy to fall. Falling powder, consumers may inhale too much powder and cause respiratory diseases during long-term use.

2. The hazards of low-quality quartz stone: long-term volatilization of residual formaldehyde may cause cancer

Some unscrupulous merchants add formaldehyde-containing glue to act as a solvent in order to reduce costs. Excess formaldehyde will remain, and a strong smell of formaldehyde will be volatilized uninterruptedly within 3-5 years. The indoor air is not circulated or the temperature is too high, which will accelerate the volatilization of such toxic substances. Long-term exposure is extremely likely to cause cancer.

3. The hazards of low-quality quartz stone: organic solvents and heavy metals harm the digestive system

Some illegal businesses use inferior inorganic pigments containing heavy metals such as lead or cadmium in the production process and add them directly Organic solvents. After these low-quality quartz stone plates enter the home, they will directly enter the digestive system through heavy metals and other harmful substances, using food as a carrier, and endanger human health.

Identification of the advantages and disadvantages of quartz stone countertops

1. The surface and internal structure of high-quality quartz stone plates are also fine and uniform, Therefore, the water absorption rate is low and the permeability resistance is strong; and the imitation quartz stone with backward production equipment and technology is often limited to the appearance that looks similar, but the internal structure is loose and porous, the permeability resistance is weak, the water absorption, and the pollution are strong. Therefore, it is very important to judge the quality of quartz stone is the finish, because the finish represents the stain resistance. The easiest way is to use a marker to draw on the quartz stone and see if it can be wiped off. If it can be wiped off, it means the stain resistance is strong. If it cannot be wiped off, it means the stain resistance is poor. It is recommended not to buy it.

2. Hardness is the identification of wear resistance. The simple method is to use a steel knife to draw, and the key cannot be used for identification. Quartz stone is made of 94% quartz and 6% resin, with a hardness of 7 degrees, while granite is synthesized from marble powder and resin, so the hardness is generally 4-6 degrees. Simply put, the ratio of quartz stone The granite is hard, more resistant to scratches and abrasion. The steel knife slashed through, leaving a white mark on the fake quartz stone, because the plate is not as hard as steel, the surface is cut by the steel knife, revealing the white inside. While the pure quartz stone is scratched by a steel knife, it will only leave a black mark, which is caused by the steel knife not moving the quartz stone, but leaving traces of steel, one black and one white, true and false.

3. In order to maximize profits, some manufacturers will dope calcium carbonate into the raw materials of quartz stone countertops. Calcium carbonate is easy to react with acid. If you choose this type of countertop, the countertop will easily change in later use. Therefore, when purchasing, you can take a sample plate and soak it in dilute hydrochloric acid or other acidic liquids. If the product contains calcium carbonate, it will react with the acid.

4. Inferior quartz stone resin content is too high, heat resistance will also be reduced. Therefore, you can use this to burn the sample with a lighter, etc., and then see if there are traces left on it.

In addition to the identification methods introduced above, we should also pay attention to: the quartz stones produced by regular manufacturers are all printed on the back , So when buying quartz countertops, be sure to look at the signs before buying.