Nowadays, quartz polishing stone is widely used in cabinet countertops. As a "face project", the choice of quartz stone has also become a problem. Why do some people's countertops are durable and do not change color, and their own home has constant cracks and penetration problems? Today, let's talk about the identification and selection method of quartz stone.

1. Identify with white vinegar or oxalic acid

Quartz stones with excellent quality should contain more than 93% quartz crystals, which will not react chemically with acidic substances. Quartz stones with poor quality contain more calcium substances, which will react with acids to produce bubbles.

2. Scratching with a hard object to observe scratches

The main component of quartz stone is made of quartz sand, which is silicon dioxide. In nature, the hardness is equivalent to that of diamond. When a good quality quartz stone is scraped with a key or a knife, only fine scratches will appear. Obviously, poor quartz stone countertops containing calcium powder and other inferior materials will have white powder and obvious scratches if they are scratched with a key.

3. Pour soy sauce or red wine to test the permeability

Soy sauce is the best test material. Pour it on the surface of the stone and observe it after a few hours. The density of a good quartz polishing stone is extremely high, and the colored objects are not easy to penetrate, and there will be no traces after wiping it off. Inferior quartz polishing stone penetrates easily and is difficult to recover.