How to identify the quality of quartz countertop

Quartz countertop with fair quality needs to have anti-fouling, anti-slip, high-temperature and corrosion-resistant properties. Quartz stone cabinet countertops are very common. How to distinguish high quality and low quality in the purchase process?

At GL Top Stone's Thailand factory, we have strict processes to inspect & ensure quartz countertops to meet requirements. Our inspector will use professional equipment to make test. However, if you are in a market and willing to purchase quartz countertops, then belowing advices would be helpful to tell the quality of countertops.

  1. Hardness Test

    Tool: Hard Objects


    The content of artificial quartz stone quartz sand is more than 93%, and the resin content of inferior products is too high. Use a hard object such as a knife to scrape the quartz stone countertop, and the high-quality quartz stone plate will not be scratched.

  2. High temperature test

    Tool: Something hot

    Method: Burn it

    Use a cigarette butt to directly burn the surface of the quartz stone countertop, but the cigarette butt will not leave any traces on the high-quality quartz stone countertop.

    This method looks crude, but it can effectively detect the high temperature resistance of quartz stone countertops.

  3. Corrosion test

    Tool: Acidic liquid

    Method: Soak it

    High-quality quartz stone is not doped with marble or granite powder. These minerals contain calcium carbonate. A certain proportion of acid is dropped on the surface of the quartz stone plate, and the high-quality quartz stone plate has no reaction.

    soak quartz sample in acid
  4. Anti-fouling test

    Tool: Water-based pen or wine

    Method: Defile

    Inferior quartz stone has poor anti-fouling performance, soy sauce, vinegar, etc. may infiltrate into the countertop within a day and be difficult to clean. When you buy a countertop, you leave scratches on the quartz stone with a water-based pen. The high-quality quartz stone just needs to be wiped lightly with a rag and it will be restored as bright as new, leaving no traces at all.

  5. Pay attention to the crack resistance of the countertop



    Due to the high hardness of quartz stone countertop, high brittleness and low toughness, cracking occurs when the quartz material cannot withstand the internal stress caused by thermal expansion and contraction. Therefore, it is necessary to choose quartz stone with high crack resistance.

  6. Visual Apearance

    Tool: Eye

    Method: Visually

    Judging from the texture of the quartz countertop, the texture of quartz stone is close to that of natural stone, and the appearance of quartz stone with poor quality has a strong plastic feel.

    High-quality quartz stone is saturated and round in color, bright in color and uniform in particles, especially the complex color plate, the color is uniform, smooth and clear.

    When choosing the color, you should consider the color of the countertop and the kitchen (kitchen decoration renderings), the color of the door panel, the pattern of the floor and the overall style of other spaces.

  7. Processing & Treatment

    Tool: Eye

    Method: Visually

    The quartz stone countertops processed by good processing technology are perfectly processed at the joints, and there are almost no joints.

    Unqualified processing will cause the quartz stone countertop to crack, and the rough processing technology will also affect the aesthetics of the countertop.