The artificial marble countertops containing calcium powder are the product of fierce competition. "Good artificial stone artificial marble countertops cost a few thousand yuan, while inferior artificial marble countertops can be purchased for a few hundred yuan." According to experts, due to fierce competition, in order to pursue high profits, some manufacturers would not hesitate to lower the quality of artificial marble. Aluminum hydroxide should be added to the resin, but because of the high cost of aluminum hydroxide, they added calcium powder, that is, calcium carbonate, to the artificial marble countertop. Because calcium carbonate is not stable enough, it is very prone to chemical reactions when encountering hot acid.
According to relevant practitioners, consumers can also check the authenticity of artificial marble countertops in the following five ways.
Take a look: Visually observe that the artificial marble sample is pure in color and not turbid, with good permeability, no plastic-like texture on the surface, and no small pores on the back of the board;
Second touch: touch the surface of the artificial marble sample with a silky feeling, no astringency, and no obvious unevenness. (This can identify whether aluminum hydroxide or calcium carbonate is used);
Three strokes: scratch the surface of the artificial marble board with your nails without obvious scratches;
Fourth test: Use soy sauce to test the permeability of the artificial marble countertop (the result is no penetration); use vinegar to test whether calcium carbonate is added (the result is no color and no powder); use a lighter to burn the artificial marble countertop sample of the artificial marble (the result is Flame retardant, no open flame, the artificial marble countertop with higher acrylic content has no taste);
Five checks: Check whether artificial marble has ISO quality system certification, environmental label certification, quality inspection report, artificial marble quality assurance card and related anti-counterfeiting marks.
