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High chroma yellow shade with excellent lightfastness and weather resistance.
Optimized for low migration and outstanding thermal stability up to 200 °C.
Free of heavy metals and compliant with major global regulatory frameworks including EU REACH and US FDA (for applicable applications).
Excellent dispersion stability in both polar and non-polar polymer matrices.
Consistent batch-to-batch color reproducibility and rheological performance.
Polyolefin compounds (PP, PE) for automotive interior parts and consumer goods.
Engineering plastics including ABS, PC, and PC/ABS blends used in electronics housings.
Thermoplastic elastomers (TPE) for seals, grips, and medical device components.
Masterbatch production for fiber and film applications requiring high clarity and color purity.
| Chemical Type | Organic Pigment Dispersion (Azo-based) |
| Product Form | Concentrated liquid color paste |
| Appearance | Homogeneous, viscous yellow paste |
| Primary Applications | Polyolefins, engineering thermoplastics, TPEs |
| Key Features | Low migration, high thermal stability, regulatory-compliant |
| Benefits | Consistent coloration, easy processing, broad compatibility |
| Recommended Carrier | Non-volatile mineral oil & polymeric dispersants |
| VOC Content | <1% (w/w) |
Q1: What is the primary application field for Hostafine Yellow HR 31 Color Paste?
A: Hostafine Yellow HR 31 is a high-performance organic pigment dispersion primarily used in demanding industrial coating systems, including coil coatings, automotive refinishes, and general metal decorative finishes where excellent lightfastness, heat stability, and gloss retention are required.
Q2: Is this color paste compatible with waterborne and solventborne systems?
A: Yes — Hostafine Yellow HR 31 is formulated as a versatile, rheology-modified paste designed for good compatibility in both waterborne and solventborne resin systems, including acrylics, polyesters, and alkyds. Performance optimization may require minor adjustment of dispersing agents or rheology modifiers depending on the base formulation.
Q3: How should this product be stored to maintain optimal performance?
A: Store in original sealed containers at temperatures between 5 °C and 30 °C, away from direct sunlight and frost. Avoid prolonged exposure to elevated temperatures (>40 °C) or freezing conditions, as these may affect dispersion stability and viscosity consistency.
Q4: What is the typical dosage range when using Hostafine Yellow HR 31 in coatings?
A: Dosage depends on the desired shade strength and final film thickness, but it is typically used at low concentrations — generally ranging from 0.1% to 2% by weight relative to the total formulation — due to its high tinting strength and efficient pigment utilization.
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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
