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High chroma and excellent color consistency across batches.
Optimized dispersion stability in water-based and solvent-based systems.
Good heat resistance up to 180°C for demanding processing conditions.
Low volatile organic compound (VOC) content, supporting eco-friendly formulations.
Compatible with common architectural and industrial binders including acrylics, alkyds, and epoxy resins.
Architectural coatings and interior/exterior wall paints.
Industrial maintenance coatings for metal structures and equipment.
Concrete admixtures and colored cement-based products.
Plastic masterbatches for PVC, PP, and HDPE applications.
Ceramic glazes and underglaze colorants for tile and sanitaryware.
| Chemical Type | Synthetic Iron(III) Oxide (α-Fe₂O₃) |
| Product Form | Ready-to-use liquid color paste |
| Appearance | Uniform red paste, free of grit or separation |
| Primary Applications | Coatings, construction materials, plastics, ceramics |
| Key Features | High tinting strength, low sedimentation, non-hazardous |
| Benefits | Reduced formulation time, improved batch reproducibility, compliance with REACH SVHC-free criteria |
| pH Value (25°C) | 7.0–8.5 |
| Storage Conditions | Store in sealed container at 5–30°C; avoid freezing |
Q1: What is the primary application field for Meichen Iron Oxide Red RX2 Color Paste?
A: This color paste is specifically formulated for use in solvent-based and water-based industrial coatings, including architectural paints, protective coatings, and general-purpose industrial finishes. Its high tinting strength and dispersion stability make it especially suitable for demanding pigmentary applications where consistent color development and batch-to-batch reproducibility are critical.
Q2: How should RX2 be incorporated into a coating formulation?
A: RX2 is designed for easy incorporation via standard high-shear mixing equipment. It is recommended to add the paste during the let-down or grinding stage—depending on the system’s rheology and pigment loading—to ensure optimal dispersion and minimize agglomeration. Pre-dilution with a compatible vehicle may be used if needed for improved handling.
Q3: Is RX2 compatible with common resin systems such as acrylics, alkyds, and polyurethanes?
A: Yes, RX2 demonstrates broad compatibility with major binder families including acrylic emulsions, alkyd resins, polyester, and two-component polyurethane systems. Compatibility testing under actual formulation conditions is always advised to confirm performance, especially when used with reactive or high-solids systems.
Q4: Does RX2 contain heavy metals or restricted substances?
A: RX2 is manufactured using high-purity iron oxide pigments and complies with globally recognized voluntary standards for heavy metal content in industrial colorants. It contains no intentionally added lead, mercury, cadmium, or hexavalent chromium, and is produced in accordance with responsible chemical management principles.
Q5: What is the typical dosage range for achieving full opacity in architectural coatings?
A: Dosage depends on the required shade intensity and film thickness, but RX2 is typically used at low concentrations due to its high chroma and hiding power—generally ranging from 0.1% to 2% by weight in the final formulation. Optimal loading should be determined through lab-scale trials to balance color strength, gloss retention, and cost efficiency.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
