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High chroma transparent yellow hue with excellent lightfastness and weather resistance.
Optimized dispersion stability in both solvent-based and water-based systems.
Low heavy metal content, compliant with international eco-regulations including EN71-3 and RoHS.
Excellent heat stability up to 180°C, suitable for baking finishes and extrusion processes.
Consistent batch-to-batch color reproducibility and rheological compatibility with common resins.
Automotive clear-coat tinting and OEM refinish systems.
Architectural and industrial coil coatings requiring transparency and durability.
Plastic coloration for ABS, PS, and PC substrates in decorative applications.
Wood stains and transparent wood finishes for interior furniture and flooring.
Specialty printing inks for high-gloss packaging and label applications.
| Chemical Type | Organically surface-treated transparent iron oxide pigment dispersion |
| Product Form | Concentrated liquid color paste (non-volatile content: ~45–50%) |
| Appearance | Homogeneous, viscous yellow liquid with slight gloss; no visible particles or sediment |
| Primary Applications | Transparent coatings, plastic coloration, wood stains, specialty inks |
| Key Features | Transparency, thermal stability, low viscosity, easy incorporation |
| Benefits | Reduced formulation complexity, extended shelf life (>24 months), minimal filter clogging |
| VOC Content | <50 g/L (solvent-based grade); aqueous version available upon request |
| Recommended Diluent | Aliphatic hydrocarbons, esters, glycol ethers, or water (depending on base system) |
Q1: What distinguishes Chroma-chem 844 from conventional iron oxide yellow pigments?
A: Chroma-chem 844 is a transparent iron yellow color paste formulated for applications requiring high chroma, excellent lightfastness, and optical clarity—unlike opaque iron oxide yellows. Its transparency enables rich undertones in clear coatings, tinted plastics, and decorative inks where depth and gloss retention are critical.
Q2: Is this color paste suitable for water-based systems?
A: Yes, Chroma-chem 844 is specifically engineered for compatibility with both water-based and solvent-based systems, including acrylic emulsions, polyurethane dispersions, and alkyd resins. It exhibits good stability and minimal viscosity impact when properly dispersed.
Q3: How should Chroma-chem 844 be incorporated into formulations?
A: It is recommended to add the paste during the let-down or post-addition stage, after base resin and solvents/dispersants are fully mixed. Gentle mechanical stirring or low-shear mixing ensures uniform distribution without compromising transparency or causing agglomeration.
Q4: Does this product contain heavy metals or restricted substances?
A: Chroma-chem 844 is manufactured using high-purity synthetic iron oxide and complies with general industrial safety and environmental guidelines. It contains no added lead, mercury, cadmium, or hexavalent chromium, and is intended for non-food-contact industrial applications unless otherwise validated.
Q5: What is the typical dosage range for achieving target shade intensity?
A: Dosage depends on the desired opacity, substrate, and system transparency, but Chroma-chem 844 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—to achieve vivid, transparent yellow tones without sacrificing clarity or film integrity.
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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
