Most of the root causes of cracks in the countertops of artificial stone cabinets are caused by three reasons: carelessness or improper use, the addition of a large amount of calcium powder in the artificial stone, and the uneven production of the cabinet. No matter which reason it is, it is always from an artificial perspective. So when making cabinets, one must understand some basic knowledge of artificial stone countertops, and secondly, when purchasing, check the quality of the artificial stone, and finally, the cabinet manufacturing needs Pay attention to stability, so as to avoid problems and troubles after installation.
Why do artificial stone cabinet countertops appear cracks?
1. Because it is not cherished or used improperly. The countertops also need to be carefully maintained. The normal artificial stone countertops can withstand a temperature of 130°C, especially where they cannot be heated, even if the quartz stone with good high-temperature resistance is relatively high if the instantaneous temperature is very high, It will also burst. Avoid using an open flame or high temperature to bake, roast or burn directly on the countertop; do not put the cooking hot pot on the stove directly on the countertop. Use insulating materials such as pads; cut vegetables on the cutting board to prepare food, Do not use metal sharp tools (kitchen knife, etc.) to directly mark or chop on the table surface to avoid surface damage and potential cracks.
In addition to the price, a more professional identification method is to take a 50 cm sample, ignite it against the blue flame of the alcohol lamp, and then slowly leave the flame. The flame of the aluminum powder board will automatically extinguish in 3 seconds, and the calcium powder The flame of the board will last more than 10 seconds.
2. Because a large amount of calcium powder is added to the artificial stone. Because the artificial stone can be arbitrarily shaped and beautiful in color, it has become the mainstream of the market, but because the ingredients inside are not the same, even the difference is relatively large, and the quality is also uneven.
Generally, the main components of artificial stone are colored agents, stabilizers, and resins. The most important thing is to distinguish between aluminum powder and calcium powder. Aluminum powder is more environmentally friendly and its chemical composition is aluminum hydroxide. It is widely used in stomach medicine and toothpaste. The molecular structure is compact and the stability is relatively good; while the chemical composition of calcium powder is calcium carbonate, which is actually a stone powder, which is relatively rough and has poor permeability and stability. The price difference between the two powders is very large. The price of 1 ton of aluminum powder is 30,000 yuan, while the price of calcium powder is only one-tenth or even lower than that of aluminum powder. Therefore, the most critical problem of countertop cracks is that calcium powder is added to the artificial stone instead of aluminum powder.
Due to the complicated craftsmanship of cabinets, some businesses take the opportunity to deceive consumers by shoddy them. The common method is to use low-quality calcium powder, but cover the surface with a beautiful resin. With the naked eye, ordinary consumers cannot see the quality. After sawing, the cross-section of good-quality artificial stone is rolled up. It is flake-like, but the poor quality is broken and has poor adhesion. At present, high-quality artificial stone countertops are about 900 yuan per meter, while artificial stone countertops with a large amount of calcium powder only sell for 100 yuan per meter, or even lower.
3. Because the cabinet body is not flat. Because the cabinet body and the artificial stone countertop have different shrinkage, the two cannot be glued together. To make the countertop evenly stressed, the cabinet must be level to prevent cracks. However, many non-brand cabinets are not standardized and refined production. The cabinet and the cabinet are connected by wood screws. Workers operate manually based on experience, but the force will definitely be different each time, which will cause the cabinet to be different. It will be level, and then put the countertop on the uneven cabinet. After a long time, cracks will easily appear.
At present, in addition to refined operations, branded cabinets will first put a layer of moisture-proof board on the cabinet body, and then add the countertop; or after the cabinet body is leveled, use wooden battens as keel support and connect with glass glue to form a very flat Afterwards, the countertop will be seated on the cabinet. On the one hand, the impact resistance of the countertop is improved. On the other hand, due to the gap of the keel, it will be beneficial to the heat dissipation of the stove.
