The quality of the quartz stone countertop directly determines the quality of the overall cabinet. A good countertop not only needs to have external features such as beautiful appearance, smooth surface, anti-fouling and scratch resistance, but also environmental protection, antibacterial, high temperature resistance and corrosion resistance. , high hardness, long life and other inherent qualities. The content of high-quality quartz stone resin is between 7-8%, and the filler is made of selected natural quartz crystal minerals, and its SiO2 content exceeds 99.9%. Radiation of heavy metal impurities, color preparation using high-grade or imported pigments. Its performance is non-toxic and tasteless, not easy to break and deform, no bleeding, no yellowing, pure color, stable quality, uniform color and lustre, and fine material particles. Inferior quartz stone countertops are harmful.
The resin content of low-grade quartz stone exceeds 12%. The production process is similar to that of ordinary artificial stone. It adopts artificial casting and manual grinding. The filler is generally made of glass fragments, or low-quality quartz combined with calcium carbonate is added. The color preparation uses low-grade domestic pigments. Its performance is as follows The quality is unstable, the color is uneven, the surface is easy to be scratched, broken and deformed, and even harmful substances such as formaldehyde and heavy metals are produced.
◆Long-term volatilization of residual formaldehyde may lead to cancer. In order to reduce costs, some unscrupulous merchants add formaldehyde-containing glue to act as a solvent. After being processed into countertops, excess formaldehyde will still remain, and a strong smell of formaldehyde will be continuously volatilized within 3 to 5 years. In an environment with no ventilation or high temperature, the volatilization of such toxic substances is accelerated, and long-term exposure is very likely to cause cancer.
◆Organic solvents and heavy metals harm the digestive system Some unscrupulous merchants use low-quality inorganic pigments containing heavy metals such as lead or cadmium in the production process, and directly add organic solvents. After these inferior quartz stone slabs enter the home, they will enter the digestive system through the heavy metals and other harmful substances attached to the surface, and use food as a carrier to directly endanger human health.
Quartz countertops purchasing skills
For the quartz stone slab: one look: the color of the product is pure, the surface has no plastic-like texture, and there is no air hole on the front of the plate. Second smell: No pungent chemical smell in the nose. Three touches: the surface of the sample has a silky feel, no astringency, and no obvious unevenness. Four strokes: scratch the surface of the plate with iron or quartz stone without obvious scratches. Five touches: The same two samples are knocked against each other, which is not easy to break. Six tests: Put a few drops of soy sauce or red wine on the surface of the quartz stone plate, rinse with water after 24 hours, and there is no obvious stain. Seven burns: good quality quartz stone plates cannot be burned, and poor quality quartz stone plates are easy to burn.
For finished products such as quartz countertops: one view: observe quartz countertops with the naked eye. High-quality quartz stone countertops have a delicate texture. Second Quantity: Measure the dimensions of the quartz stone countertop. So as not to affect the splicing, or cause the spliced pattern, pattern, line deformation, affect the decorative effect. Three listening: listen to the sound of the percussion of the stone. Generally speaking, a stone with good quality, dense and uniform interior and no micro-cracks will have a crisp and pleasant percussion sound; on the contrary, if there are micro-cracks or veinlets inside the stone or the contact between particles becomes loose due to weathering, the percussion sound will be crisp and pleasant. Loud. Four tests: Usually a small drop of ink is dropped on the back of the stone. If the ink is quickly dispersed and leached out, it means that the particles inside the stone are loose or there are microscopic cracks, and the quality of the stone is not good; on the contrary, if the ink drop does not move in place , it means that the stone is dense and has a good texture.
Post time: Apr-02-2022
