Why does Artificial Calacatta Quartz Countertops easily burst when exposed to high temperatures?

Dec. 20, 2019

The proportion of quartz stone in the decorative stone of home decoration is getting higher and higher, especially the use of cabinets and countertops is the most common in home decoration, and the problems that come with it are more and more obvious, such as cracking and local discoloration. Today, the Artificial Quartz Stone Supplier will explain the reasons for the cracks and discoloration of the quartz stone countertops.

Quartz stone plate is composed of more than 90% natural quartz and about 10% colorants, resins and other additives that adjust adhesion and curing. Artificial quartz stone is formed by negative pressure vacuum and high-frequency vibration. It is cured by heating, its texture is hard, its structure is compact. It has abrasion resistance (more than 6-7 Mohs hardness), pressure resistance (density 2.0g) / Cubic centimeter), high temperature resistance (can withstand temperature 300 ℃), anti-corrosion, anti-permeability without any pollution and radiation sources, green environmental protection artificial stone.

Artificial Calacatta Quartz Countertops

Artificial Calacatta Quartz Countertops

Artificial Calacatta Quartz Countertops can be described as the perfect combination of natural beauty and high technology. The plate is die-casted by pressure of more than 50 tons, the hardness is not lower than Mohs hardness level 5 and the density is 2.6g / c m³. Quartz stone has a water absorption rate of only 0.02% and is resistant to penetration. The plate is cured at a high temperature of 150 degrees, so it has high-temperature resistance. The quartz stone plate can withstand up to 300 degrees.

Many people are wondering that since quartz stone can withstand temperatures up to 300 °, why does a hot container directly on the table cause it to burst and change color? Because of the 10% resin solvent contained in the raw materials of the quartz stone board mentioned above, it is easy to cause heat expansion and contraction after high temperature. Due to sudden local heating, cracks or imprints on the bottom of the container are easy to occur if there is no expansion joint when the table is installed Discoloration. Quartz stone manufacturers remind users that thermal containers should be avoided if they are in direct contact with the countertop.

With the continuous improvement of the production capacity and technology of China's quartz stone manufacturers, the price of quartz stone has become more and more affordable. More people have started to use quartz stone as the main decorative material, such as ground laying, wall hanging and modeling. However, the most widely used is the countertop, but the cracking phenomenon after the installation of the countertop has been bothering manufacturers and processors.

First of all, we should first understand the cause and location of cracking. Quartz stone plate is a brittle polymer composite material, which has the characteristics of thermal expansion and contraction. It has certain shrinkage stress, impact toughness, and elongation at break. When the material cannot withstand the internal stress caused by thermal expansion or contraction, it is subject to Cracking occurs during severe external impact. The cracking location is generally the cracking of the edge extending inward or the cracking of the periphery of the hole.

How should we prevent cracks from continuing to extend and repair after cracks appear? After the table is cracked, a round hole drill should be used at the top of the crack extension direction to prevent the table from cracking. Repairs should be performed by professionals. First, the cracks need to be embedded; then the glue is prepared and poured into the embedded gap; after the glue is completely cured, it is polished. However, there will be traces after the restoration of quartz stone, which will have an impact on the overall aesthetics. Our company also has Custom Calacatta Quartz Countertop on sale, welcome to consult.