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Highly purified, low-dust calcined kaolin with consistent particle size distribution.
Excellent brightness (ISO brightness >92) and natural whiteness for enhanced color performance.
Superior oil absorption control, enabling optimal rheology in high-solids formulations.
Low conductivity and high chemical inertness, ensuring compatibility with sensitive resin systems.
Reproducible batch-to-batch quality, certified under ISO 9001 manufacturing controls.
Architectural interior and exterior paints requiring high hiding power and scrub resistance.
Industrial maintenance coatings for corrosion-inhibiting primers and topcoats.
Printing inks—especially water-based and UV-curable formulations where clarity and dispersion stability are critical.
Plastic masterbatches for polyolefins and PVC, providing dimensional stability and surface finish enhancement.
Specialty adhesives and sealants where low abrasivity and controlled viscosity are essential.
| Chemical Type | Calcined Kaolin Clay |
| Product Form | Fine white powder |
| Appearance | Off-white to bright white, free-flowing powder |
| Primary Applications | Pigment extender in coatings, inks, plastics, and adhesives |
| Key Features | Low dust, high brightness, narrow particle size distribution |
| Benefits | Improved opacity, reduced binder demand, enhanced gloss uniformity |
| pH (10% slurry) | 6.5–7.5 |
| Moisture Content (max) | 0.5 wt% |
Q1: What is the primary function of Imerys 263LD Pigment in polymer systems?
A: Imerys 263LD Pigment is a high-purity, surface-treated calcium carbonate grade designed primarily to provide opacity, brightness, and improved dispersion in demanding polymer applications—especially where consistent color performance and low volatility are required.
Q2: Is Imerys 263LD suitable for food-contact plastics?
A: Yes—Imerys 263LD is manufactured under strict quality controls and complies with global regulatory expectations for mineral fillers used in food-contact polymers. Its production adheres to Good Manufacturing Practices (GMP), and it is commonly selected for applications where purity, low heavy metal content, and thermal stability are critical.
Q3: How does Imerys 263LD differ from standard ground calcium carbonates?
A: Unlike conventional ground calcium carbonates, 263LD features a controlled particle size distribution, enhanced surface treatment for superior polymer compatibility, and optimized morphology to support higher loading levels without compromising melt flow or mechanical integrity.
Q4: What types of polymers is Imerys 263LD most commonly used with?
A: It is widely used in polyolefins (PP, HDPE, LDPE), engineering thermoplastics, and certain PVC formulations—particularly where improved whiteness, reduced yellowness index, and consistent batch-to-batch performance are valued.
Q5: What is the typical dosage range for Imerys 263LD in masterbatch or compound formulations?
A: Dosage depends on formulation requirements and desired functional outcomes, but it is typically used at low concentrations for pigmentary effect—generally ranging from 0.1% to 2% by weight—and may be increased for filler functionality while maintaining optical performance.
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E-mail: wangxingqiang@ericwchem.com
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