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High chroma, consistent red hue with excellent batch-to-batch color reproducibility.
Optimized for dispersion stability in water-based and solvent-based systems without flocculation.
Low volatile organic compound (VOC) content, compliant with global environmental and safety standards.
Good heat resistance up to 180°C, suitable for medium-temperature processing applications.
Non-hazardous formulation — free of heavy metals, APEOs, and restricted azo dyes.
Architectural and industrial waterborne coatings.
Plastic coloration for PP, PE, and ABS compounds.
Printing inks for flexible packaging and label applications.
Wood stains and decorative laminates.
Construction materials including cementitious tile adhesives and grouts.
| Chemical Type | Organic pigment dispersion (Benzimidazolone-based) |
| Product Form | Ready-to-use liquid color paste |
| Appearance | Homogeneous viscous paste, deep red shade |
| Vehicle System | Water and glycol co-solvent base |
| pH Value (25°C) | 7.5 – 8.5 |
| Specific Gravity (25°C) | 1.12 – 1.18 g/cm³ |
| Shelf Life | 24 months from date of manufacture, unopened, stored at 5–30°C |
| Primary Applications | Coatings, plastics, inks, construction materials |
Q1: What types of polymer systems is Meichen Red RH1 Color Paste compatible with?
A: Meichen Red RH1 Color Paste is formulated for compatibility with common thermoplastic resins including polyethylene (PE), polypropylene (PP), and polystyrene (PS). It demonstrates good dispersion stability in non-polar and moderately polar matrices, though compatibility testing is recommended for specific formulations.
Q2: How should Meichen Red RH1 Color Paste be incorporated into the base polymer?
A: The paste is typically introduced during compounding using standard melt-mixing equipment such as twin-screw extruders or internal mixers. Pre-blending with a portion of the base resin before full melt processing helps ensure uniform distribution and minimizes streaking.
Q3: Is Meichen Red RH1 suitable for applications requiring heat stability during processing?
A: Yes, Meichen Red RH1 Color Paste is designed to withstand typical thermoplastic processing temperatures up to approximately 240°C without significant hue shift or degradation, making it suitable for high-shear, high-temperature compounding and injection molding operations.
Q4: What is the typical dosage range for achieving target color intensity?
A: Dosage depends on the desired shade depth and base polymer transparency, but it is generally used at low concentrations—typically ranging from 0.1% to 2% by weight relative to the final compound. Optimal loading should be determined through small-scale trials under actual processing conditions.
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E-mail: wangxingqiang@ericwchem.com
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