【Corporate Popular Science】The Truth About Quartz Sand Content in Artificial Quartz Stone: Scientific Ratio is the Core of Quality
13 Apr, 2026
I. Reasonable Quartz Content Range: 84%-93%, the Optimal Range Recognized by the Industry and Strictly Followed by Our Company
Artificial quartz stone is made of quartz sand/powder, resin, pigments and additives through vacuum pressing and curing. Deeply rooted in the industry, our company has confirmed through practical verification that the reasonable range of quartz content for qualified and performance-stable artificial quartz stone is 84%-93%. This range balances color, production feasibility and service performance, is the general ratio of regular brands, and is also the core standard for all quartz stone products of our company.
II. Higher Quartz Content is Not Necessarily Better: Balancing Hardness, Strength and Toughness is the Key to Quality
Some merchants on the market hype the concept of "ultra-high quartz content", which is essentially a marketing gimmick to mislead consumption. Combined with our company's experience, quartz content exceeding 93% has no practical significance and will damage the comprehensive performance of the slabs.
Quartz provides hardness and wear resistance, while resin is responsible for bonding quartz particles and ensuring strength, toughness and formability. The balanced ratio of the two is the core of quality.
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Quartz content exceeding 93%: Insufficient resin cannot fully wrap the quartz particles, making the slabs brittle and poor in impact resistance, prone to chipping during processing and cutting, and edge chipping and cracking in daily use;
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Quartz content below 84%: Excessive resin makes the slabs soft, prone to scratches and discoloration, and easy to deform and yellow under high temperature, losing the core advantages of quartz stone.
Only the scientific range of 84%-93% can achieve the balance of hardness, strength, toughness, impermeability and processability, which is the quality bottom line adhered to by our company.
III. Natural Differences in Quartz Sand Content Due to Different Colors and Styles (Reference for Our Company's Product Ratio)
The quartz sand content is not fixed; color and particle size determine its reasonable range, which is an industry consensus and an important basis for our company's product design:
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Fine-grained/solid-color slabs: Fine particles require more resin for mixing, with quartz content of 84%-88% (our company's solid-color series follows this ratio to balance texture and performance);
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Medium and small-grained slabs: Moderate particles with uniform gaps and reasonable resin dosage, with quartz content of 87%-90% (our company's conventional models adopt this ratio, suitable for most scenarios);
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Large-grained slabs: Large particles with gaps conducive to gradation and less resin dosage, with quartz content of 89%-93% (our company's high-end large-grained series achieves double guarantee of high content and high performance).
IV. Sand and Powder Gradation and Production Technology: Determining the Upper Limit of Quartz Content and Reflecting Corporate Strength
After the color is determined, sand and powder gradation and production technology determine the upper limit of quartz content for the same type of color, which is the core embodiment of brand strength.
Relying on technical precipitation, our company scientifically grades quartz sand and powder of different particle sizes to fill particle gaps, improving quartz proportion without increasing resin, while enhancing the density, hardness and impermeability of slabs.
Manufacturers with poor technology can only fill gaps by increasing resin due to unreasonable gradation, which not only fails to improve quartz content, but also reduces slab performance and wastes costs.
V. Actual Impact of Quartz Content on Service Performance (Combined with Our Company's Product Test Data)
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Hardness and wear resistance: Within the range of 84%-93%, the higher the content, the better the wear resistance. The measured Mohs hardness of our company's products is ≥ level 5, which can resist daily scratches; low content is prone to scratches.
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Impermeability: High content and reasonable gradation result in high density and low water absorption. The water absorption of our company's products is much lower than the industry standard, and stains are not easy to penetrate; low content is prone to discoloration and difficult to clean.
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Strength and crack resistance: Slabs with a ratio of 84%-93% have moderate strength and toughness and strong impact resistance. Our company's products have passed crack resistance tests and are suitable for various scenarios; high content is brittle, and low content is soft and easy to deform.
VI. Practical Suggestions for Consumers and Distributors (Corporate Perspective)
Adhering to the concept of "scientific ratio and quality first", our company provides suggestions for consumers and distributors:
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Consumers: Do not blindly believe in "ultra-high content" propaganda. It is normal for fine-grained and solid-color slabs to have low content. Focus on brand, technology and actual test performance, and choose regular brands like our company.
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Distributors: Objectively explain that "color determines content and technology determines quality" without misleading customers. Our company will provide product training and parameter support to help serve customers.
In summary, the quartz sand content of artificial quartz stone emphasizes "adaptation" rather than "extremeness", and 84%-93% is the scientific range. Color determines the range, technology determines the quality, and balanced and up-to-standard performance is the mark of high-quality products. In the future, our company will deepen R&D, adhere to scientific ratio, and provide more durable and cost-effective products to promote the development of the industry.
