Metals & minerals

High Transparency Calcium Carbonate CaCO3 China Factory and Suppliers

Leading China factory and suppliers of high transparency Calcium Carbonate CaCO3. Our ISO-certified plant provides premium GCC and PCC grades for paint, paper, and plastics, ensuring ultra-high purity and consistent quality.

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

About this product

Product information from the supplier.

Our High Transparency Calcium Carbonate (CaCO3) is a premium industrial mineral engineered for superior clarity, purity, and performance. Sourced from high-quality natural calcite and produced through advanced mechanical and chemical processes, our product is available in both Ground Calcium Carbonate (GCC) and Precipitated Calcium Carbonate (PCC) grades to meet the exacting standards of the global paint, paper, and plastics industries.

Designed to optimize material properties, our calcium carbonate acts as a high-efficiency filler and improver. By leveraging ultra-fine particle size distributions (from 7µm to 2000+ mesh), it enhances the texture, opacity, and structural integrity of end products while significantly reducing production costs. Whether you require uncoated fine powders or specialized coated versions, our ISO-certified manufacturing ensures consistent whiteness and chemical stability.

Detailed Parameters

CaCO3 Content≥ 98.5%Whiteness≥ 93% - 98%
pH Value8.0 - 10.5Specific Gravity2.7 g/cm³
Particle Size7µm - 2000+ meshMoisture Content≤ 0.3%
Oil Absorption24 - 38 ml/100gMohs Hardness3 - 4
Fe Content≤ 0.08%Refractive Index1.6

Key Advantages


Ultra-High Purity

Low heavy metal content (Pb, As < 0.3) ensures safety and stability for demanding industrial applications.


Consistent Quality

ISO-certified production with 23 national patents ensuring batch-to-batch reliability and precision.


Optical Clarity

High transparency and brightness indices make it ideal for high-end coatings and clear plastics.


Versatile Grading

Available in Coated and Uncoated forms with particle sizes tailored to specific industrial needs.


Enhanced Durability

Improves the rigidity, strength, and weather resistance of plastics and industrial paints.


Cost Efficiency

Effective substitution for expensive resins and pigments without compromising final product quality.

Product Gallery

Management Platforms

Quality Control

Rigorous testing for CaCO3 purity and particle size distribution based on GB/T9281-2003 standards.

Advanced Processing

Utilizing mechanical crushing for GCC and chemical sedimentation for PCC to ensure specific properties.

Supply Chain

Efficient logistics and strong supply chain ensuring timely delivery of bulk orders worldwide.

ISO Certification

Our facilities are ISO certified, adhering to global environmental and quality management systems.

Packaging Solutions

Standard 25kg composite plastic woven bags designed for safe transport and easy handling.

R&D Innovation

Continuous development of surface-treated and active calcium carbonates for specialized industries.

Investment Return Comparison

FeatureHeavy Calcium (GCC)Light Calcium (PCC)
Production MethodMechanical CrushingChemical Synthesis
Particle SizeLarger/VariableFiner/Uniform
Oil AbsorptionLowerHigher
Cost ProfileMore AffordablePremium Price
Settlement RateTends to SettleBetter Stability

Frequently Asked Questions

Q: What is the main difference between Heavy and Light Calcium Carbonate?

Heavy calcium (GCC) is produced by crushing natural calcite and is generally more cost-effective. Light calcium (PCC) is synthetically produced, offering finer particle sizes, higher oil absorption, and better stability in emulsions.

Q: How does calcium carbonate improve paint quality?

It acts as a filler and pigment that enhances texture, opacity, and finish. It also improves the paint's resistance to weathering and abrasion while ensuring a smooth application.

Q: Can your Calcium Carbonate be used in the plastics industry?

Yes, it is widely used to reinforce plastics, increasing their strength, rigidity, and durability, especially in packaging and automotive parts where clarity is essential.

Q: What is the purity level of your high-transparency CaCO3?

Our products typically maintain a CaCO3 content of ≥ 98.5%, with very low levels of iron, manganese, and aluminum to ensure maximum whiteness and transparency.

Q: Is the product available in different particle sizes?

Yes, we offer a range from ultra-fine powders (7µm) to coarser grades (over 2000 mesh), including both coated and uncoated options to suit your specific application.

Q: What certifications do your factories hold?

Our factories are ISO certified, and our production techniques are backed by 23 national patents, ensuring global quality compliance.

Ready to Enhance Your Production with High-Purity CaCO3?

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