High Purity Calcium Carbonate CaCO3 Factory and Suppliers in China

Looking for high transparency calcium carbonate CaCO3? As leading China suppliers and a certified factory, we provide premium GCC and PCC for paint, paper, and plastics. Our high-purity mineral solutions ensure exceptional whiteness and stability for industrial applications.

SupplierHebei Junlan Packaging Technology Co., LTD.www.glorystarexport.com

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About this product

Product information from the supplier.

Our High Transparency Calcium Carbonate (CaCO3) is a premium industrial-grade mineral solution engineered specifically for the paint, paper, and plastics industries. By leveraging superior natural calcite and advanced chemical precipitation processes, we provide both Ground Calcium Carbonate (GCC) and Precipitated Calcium Carbonate (PCC) that offer exceptional purity, high whiteness, and precise particle size distribution to enhance the structural and aesthetic properties of your final products.

Designed to function as a high-performance filler and improver, our calcium carbonate minimizes production costs while maximizing product quality. Whether you require the stability and cost-efficiency of heavy calcium carbonate or the high oil absorption and superior sedimentation properties of light calcium carbonate, our ISO-certified production ensures consistent reliability and strict adherence to international purity standards.

Detailed Parameters

CaCO3 Content	≥ 98% - 98.7%	Whiteness	≥ 90% - 98%
Particle Size	3.0μm - 2000 mesh	pH Value	8.0 - 10.5
Specific Gravity	2.7 g/cm³	Moisture Content	≤ 0.3%
Oil Absorption	24g - 38g / 100g	Fe Content	≤ 0.1%
Refractive Index	1.6	Mohs Hardness	3 - 4

Key Advantages

Ultra-High Purity

Produced from natural superior calcite with low heavy metal content, ensuring minimal lead and arsenic levels below 0.3.

Enhanced Stability

Our heavy calcium carbonate offers exceptional stability in formulations, preventing premature settling in industrial paints.

Optical Clarity

High transparency and whiteness grades improve the brightness and opacity of paper and plastic products.

Versatile Application

Suitable for a vast range of sectors including rubber, adhesives, ink, cosmetics, and civil construction.

Precise Grading

Available in coated and uncoated varieties with particle sizes ranging from 7µm to over 2000 mesh.

Certified Quality

ISO certified factories with 23 national patents, ensuring every batch meets strict industrial specifications.

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Management Platforms

Quality Control

Rigorous testing for CaCO3 content, whiteness, and purity to ensure industrial consistency.

Advanced Processing

Utilizing mechanical crushing for GCC and chemical sedimentation for PCC to meet specific needs.

Supply Chain Efficiency

Optimized logistics for timely delivery of 25kg bags in 20ft containers (27 tons).

Technical Support

Custom processing available to adjust manganese, aluminum, and magnesium content for clients.

Packaging Standards

Secure composite plastic woven bags designed for long-distance maritime transport.

R&D Innovation

Continuous improvement in surface treatment and coating technologies for higher activity rates.

Investment Return Comparison

Feature	Heavy Calcium (GCC)	Light Calcium (PCC)
Production Method	Mechanical Crushing	Chemical Synthesis
Relative Cost	Low / Cost-Effective	Higher / Premium
Oil Absorption	Lower	Higher
Settlement Rate	Tends to settle faster	Better suspension
Primary Use	Cement, Fillers, Coatings	Cosmetics, High-end Plastics

Frequently Asked Questions

Q: What is the difference between heavy and light calcium carbonate?

Heavy calcium (GCC) is produced by crushing natural calcite, making it more cost-effective and stable. Light calcium (PCC) is chemically synthesized, offering smaller particle sizes and higher oil absorption, which is ideal for specialty fillers.

Q: How does calcium carbonate benefit the paint industry?

It acts as a filler and pigment that improves texture, opacity, and durability. High transparency grades ensure a smooth finish and better resistance to weathering and abrasion.

Q: Can calcium carbonate improve the quality of plastics?

Yes, it reinforces plastics by increasing strength, rigidity, and durability. The high transparency version is specifically used in packaging and automotive parts to maintain aesthetic clarity.

Q: What is the typical purity level of your CaCO3 products?

Our products generally maintain a purity level of 98% to 98.7%, ensuring that impurities like iron and manganese are kept to a minimum for industrial high-performance applications.

Q: Is your calcium carbonate suitable for the paper industry?

Absolutely. It is used as a filler to enhance brightness, opacity, and smoothness of paper, while reducing the need for expensive chemical bleaches.

Q: What packaging options do you provide for bulk orders?

We provide standard 25kg composite plastic woven bags, with a maximum loading capacity of 27 tons per 20ft container for efficient international shipping.