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Quartz Is So Hard! Why Are Some Quartz Stone Countertops Easy To Crack And Have Large Quality Differences?

Quartz Is So Hard! Why Are Some Quartz Stone Countertops Easy To Crack And Have Large Quality Differences?

With the continuous improvement of the production capacity of domestic quartz stone manufacturers, quartz stone has been widely used in countertops, floors and walls.

"Quartz stone plate has the characteristics of crystal clear particles, beautiful color, luxurious, high hardness, strong toughness, low water absorption, non-radioactive, acid and alkali resistance, etc. It is the preferred surface material for cabinet countertops and window sills.

◐If there is a market, there will be quality differences. At present, the ratio of quartz stone raw materials is no longer a secret. How can there be quality differences in the same ratio?

Reasons for the difference in the quality of quartz stone

◎Control of production raw materials

Quartz stone is synthesized from quartz sand and unsaturated resin as the main raw materials.

With the continuous improvement of quartz stone standards, the classification of quartz sand and resin is also more refined, and the price of raw materials has also opened a certain distance, so the quality of raw materials has a certain impact on the quality of plates.

Due to the quality difference of raw materials, the main aggregate quartz sand powder is divided into four grades: A, B, C, D, etc., and the price difference between different grades is also very large.

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◎Production equipment

Quartz slabs have stricter requirements on production equipment, the most important being the press.

The pressure of the quartz stone plate production press should reach more than 50 tons, the vacuum density should reach more than -95kpa, and the density of the produced plate should reach more than 2.3g/cm³.

In addition, the quartz stone plate must have a certain bending ability, and the bending strength should not be less than 40mpa, so that the plate has a certain resistance to bursting.

Some small quartz stone manufacturers even use artificial stone production equipment, so that the quality is naturally a certain distance from the brand quartz stone.

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Reasons and Analysis of Quartz Stone's Easy Cracking

01 Reason: cracks at the seam of the countertop

analyze:

1. When the installer is sewing, the seam is not aligned

2. The glue is not applied evenly, and more importantly, it is not fixed with F clamps after applying the glue

3. Adding too much curing agent or accelerator to the glue leads to brittle seams

02 Cause: Cracks in the corners

analyze:

1. Too tight against the wall without leaving a shrinkage seam

2. The two cabinets are uneven or not leveled

3. The countertop shrinks unevenly and cracks due to external impact or temperature change

03 Cause: Cracks around the countertop basin

analyze:

1. There is no gap between the basin and the basin hole on the countertop

2. The pot hole is not polished and smooth

3. The four corners of the pot hole are not rounded or have sawtooth marks

4. The countertop shrinks unevenly and cracks due to external impact or temperature change

04 Reason: cracking around the furnace hole

analyze:

1. There is no gap between the gas stove and the furnace hole

2. The furnace hole is not polished and smooth

3. The countertop shrinks unevenly and cracks due to external impact or temperature change

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Post time: Mar-08-2022