Ground Calcium Carbonate (GCC) — CaCO₃

Description

1. Product Overview

Ground Calcium Carbonate (GCC) — CaCO₃ is a finely milled, high-purity mineral derived from naturally occurring limestone. It is widely used as a functional industrial filler and performance enhancer across plastics, paints, coatings, paper, rubber, and construction materials. GCC delivers exceptional brightness, controlled particle size distribution, and cost-efficient volume replacement, making it a critical raw material in high-scale manufacturing. Its strategic importance lies in its ability to improve product performance while significantly reducing production costs and raw material dependency on higher-cost resins and pigments.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Calcium Carbonate (CaCO₃ ≥ 98–99% depending on grade)
• Purity Level / Grade: Industrial grade, coated/uncoated options available
• Physical Form: Fine white powder
• Color: Bright white to off-white
• Particle Size: D50 typically 1–10 microns (customizable grades available)
• Density: Approx. 2.6–2.8 g/cm³ (true density)
• Moisture Content: ≤ 0.2% (controlled drying process)
• Packaging Options: 25 kg PP bags, jumbo bags (500–1,000 kg), bulk tanker (on request)
• Shelf Life: Stable indefinitely under dry storage conditions

3. Core Industrial Applications

GCC is a foundational material across multiple high-volume industries. In the plastics sector, it acts as a cost-effective filler improving rigidity, dimensional stability, and processing efficiency. In paints and coatings, it enhances opacity, brightness, and surface smoothness while reducing titanium dioxide dependency. The paper industry utilizes GCC for improved whiteness, printability, and reduced production costs. In construction, it is used in adhesives, sealants, cement, and mortars to improve workability and mechanical strength. Compared to alternative fillers, GCC offers superior cost-performance balance, consistent particle morphology, and broad formulation compatibility.

4. Competitive Advantages

• Consistent Quality: Tight particle size control and high whiteness index across batches
• Supply Reliability: Stable sourcing from high-grade limestone reserves ensuring uninterrupted production supply
• Logistics Efficiency: Flexible bulk and containerized shipping optimized for global distribution
• Cost Competitiveness: Significant cost reduction versus resin, pigment, and titanium dioxide substitution
• Sustainability Benefits: Naturally abundant, non-toxic, and environmentally benign mineral
• Technical Support: Full documentation including COA, TDS, and application guidance available for industrial integration

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT
• Loading Capacity: 20–27 MT per 20ft container (depending on packaging and density configuration)