Vietnam High Whiteness Heavy 400 Mesh Calcium Carbonate Crecarb 8 - Superior Brightness for Paints
Vietnam High Whiteness Heavy 400 Mesh Calcium Carbonate Crecarb 8: Engineered for Premium Opacity and Cost Efficiency in Modern Paints
In the competitive landscape of paint formulation, Vietnam-sourced Crecarb 8 Heavy Calcium Carbonate sets a new benchmark for functional fillers. Meticulously processed to deliver exceptional brightness and optimal particle geometry, this 400-mesh ground calcium carbonate (GCC) empowers manufacturers to achieve superior hiding power, rheological control, and formulation economy across waterborne and solvent-borne coating systems.
Product Overview
Crecarb 8 is a high-purity, natural limestone-derived calcium carbonate processed through advanced dry grinding and precision classification technologies. Designed as a multifunctional additive for paint and coatings, it combines Vietnam’s premium mineral resources with cutting-edge manufacturing to address critical formulation challenges:
- Reducing titanium dioxide (TiO₂) dependency without sacrificing whiteness
- Enhancing mechanical durability in cost-sensitive formulations
- Delivering consistent batch-to-batch performance
Key Performance Advantages
1. Unmatched Optical Properties
- CIE Whiteness Index: 97.5+ (ISO 2470-2)
- Blue-White Undertone: Neutral base minimizes color distortion
- Opacity Enhancement: 18% higher light scattering vs. standard GCC grades
2. Precision Particle Engineering
- Median Particle Size (D50): 14–16 μm
- Top Cut (D98): ≤38 μm (equivalent to 400 mesh)
- Narrow Distribution: 85% particles within ±5 μm of D50
3. Enhanced Coating Performance
- TiO₂ Replacement: Up to 15% substitution possible in emulsion paints
- Abrasion Resistance: Improves Taber wear index by 22% (ASTM D4060)
- Settling Resistance: 72-hour suspension stability in high-PVC formulas
4. Formulation Economics
- 30% lower cost-per-opacity-unit vs. precipitated calcium carbonate (PCC)
- Reduces milling time by 18% due to inherent softness (Mohs 3.0)
- Compatible with all major dispersants and surfactants
5. Sustainable Profile
- Zero VOCs | APEO-free | REACH compliant
- 100% natural mineral content
- Carbon footprint: 0.6 kg CO₂/kg (cradle-to-gate)
Technical Specifications
| Parameter | Value | Test Method |
|---|---|---|
| CaCO₃ Content (Dry Basis) | ≥98.5% | ISO 3262-1 |
| Whiteness (ISO) | 97.5–98.5 | ISO 2470-2 |
| Particle Size (D50) | 14–16 μm | Laser Diffraction |
| Residue on 45μm Sieve | ≤0.1% | ISO 787-7 |
| Moisture Content | ≤0.3% | ISO 787-2 |
| Oil Absorption | 18–22 g/100g | ASTM D281 |
| pH (10% Slurry) | 8.8–9.3 | ISO 787-9 |
| Brightness (GE) | 94–96 | TAPPI T452 |
| Specific Gravity | 2.7–2.9 g/cm³ | ASTM D5965 |
Industrial Applications
Architectural Coatings
- Interior/exterior emulsion paints
- Texture coatings and primers
- Roofing and elastomeric coatings
Industrial Maintenance Paints
- Machinery and equipment coatings
- Anti-corrosive primers
- Tank linings
Automotive & Marine
- Underbody coatings
- Filler compounds
- Marine topcoats
Specialty Coatings
- Powder coatings (extender)
- Road-marking paints
- Fire-retardant systems
Mechanism of Action
Crecarb 8 enhances coating performance through synergistic mechanisms:
- Optical Efficiency: Optimized particle size maximizes light scattering, amplifying TiO₂ effectiveness.
- Rheological Control: Platelet-shaped particles improve sag resistance at high DFTs.
- Film Reinforcement: Interparticle bonding enhances tensile strength and crack resistance.
- Cost Optimization: High refractive index (1.59) reduces expensive pigment requirements.
Formulation Guidelines
Recommended Loading Levels
- Emulsion paints: 15–25% by weight
- Solvent-borne primers: 20–35% by weight
- Powder coatings: 10–18% by weight
Dispersion Protocol
- Premix with 50% formulation water/dispersant
- High-speed disperse at 1,800–2,200 rpm for 20 mins
- Finalize with 15–30 mins bead milling (1.0–1.5 mm beads)
Compatibility Matrix
| Resin System | Compatibility | Optimal PVC Range |
|---|---|---|
| Acrylic Emulsion | Excellent | 25–45% |
| Epoxy | Good | 30–50% |
| Alkyd | Excellent | 20–40% |
| Polyurethane | Good | 15–35% |
Performance Comparison
Benchmark against alternative extenders (per 25% PVC formulation):
| Parameter | Crecarb 8 | China GCC | PCC | Talc |
|---|---|---|---|---|
| Hiding Power (m²/L) | 12.4 | 10.7 | 13.1 | 9.8 |
| Cost per kg | $0.28 | $0.25 | $0.65 | $0.38 |
| Scrub Resistance | 1,200 cycles | 850 cycles | 1,500 cycles | 700 cycles |
| Gloss Retention | 88% | 82% | 90% | 75% |
Environmental & Safety Profile
- Certifications:
- ISO 14001:2015 Environmental Management
- ISO 45001:2018 Occupational Safety
- EU Ecolabel Ready (pending)
- Safety Data:
- Non-hazardous (OSHA 29 CFR 1910.1200)
- TSCA & DSL Listed
- Aquatic toxicity LC50 >100 mg/L
Case Study: Interior Emulsion Paint
Challenge:
Achieve 85+ ISO whiteness in low-VOC paint under $1.20/kg
Solution:
25% Crecarb 8 substitution for 15% TiO₂ in acrylic formulation
Results:
- Whiteness Index: 87.5 ISO
- VOC Content: 28 g/L
- Production Cost: $1.14/kg
- Wet Scrub Resistance: 1,050 cycles (EN 13300)
Packaging & Logistics
- Standard: 25 kg PP/PE laminated bags (20 bags/pallet)
- Bulk: 1,000 kg FIBC super sacks with dust-free spout
- Shelf Life: 24 months in dry, ventilated warehouses
- Lead Time: 30 days ex-Haiphong Port, Vietnam
Technical Support
Our mineral specialists provide:
- TiO₂ reduction modeling
- Free sample testing with your formulation
- Regulatory documentation packages
- On-demand particle size customization
Why Choose Crecarb 8?
- Geopolitical Advantage: Vietnam-sourced, tariff-optimized supply chain
- Quality Consistency: ≤0.5 μm particle size deviation between batches
- Technical Legacy: 20+ years specializing in coating-grade carbonates
- Sustainability: Quarried using biodiversity-preserving mining practices
Industry Endorsements
"Crecarb 8 allowed us to reduce TiO₂ usage by 12% while maintaining our premium whiteness standard – a game-changer for cost-sensitive markets."
– Formulation Manager, ASEAN Paint Manufacturer
"The perfect balance between particle structure and brightness – our textured coatings now have better coverage and scratch resistance."
– R&D Director, Industrial Coatings Company
Ordering Information
Available in tailored grades:
- C8-Fine: 600 mesh variant for ultra-smooth finishes
- C8-HD: High-density version for compacted coatings
- C8-LT: Low-oil-absorption grade for waterborne systems
Volume discounts apply for 20+ MT containerized orders.
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