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High thermal stability suitable for demanding processing conditions up to 280 °C.
Excellent lightfastness and weather resistance in outdoor applications.
Good dispersibility in both polar and non-polar polymer systems.
Low migration tendency, ensuring color integrity in PVC, polyolefins, and engineering plastics.
Compliant with major global regulatory frameworks including REACH and FDA 21 CFR §178.3297 for indirect food contact applications.
Coloration of rigid and flexible PVC profiles, cables, and flooring.
Masterbatch formulation for polypropylene (PP) and polyethylene (PE) packaging films.
Engineering thermoplastics including ABS and polycarbonate for automotive interior components.
Industrial coatings requiring high chroma red shades with good opacity.
Plastic caps and closures for consumer goods and household products.
| Chemical Type | Quinacridone derivative |
| Product Form | Fine powder |
| Appearance | Red-violet free-flowing powder |
| Primary Applications | PVC, polyolefins, engineering plastics, industrial coatings |
| Key Features | High heat stability, low volatility, excellent dispersion |
| Benefits | Consistent batch-to-batch color performance, minimal filter clogging in extrusion |
| Regulatory Status | REACH registered; compliant with FDA 21 CFR §178.3297 (for indirect food contact) |
| Storage Conditions | Store in original sealed packaging at 15–25 °C, protected from moisture and direct sunlight |
Q1: What is the primary chemical class and typical hue profile of PV Fast HGR 191?
A: PV Fast HGR 191 is a high-performance quinacridone-based organic pigment, delivering a clean, bluish red shade with excellent chroma and strong tinting strength. Its molecular structure provides inherent resistance to thermal degradation and photolysis.
Q2: Is this pigment suitable for use in polyolefin masterbatches, and what processing conditions should be considered?
A: Yes, PV Fast HGR 191 is widely used in polypropylene and polyethylene masterbatches. It demonstrates good dispersibility and stability during high-shear compounding and melt processing at temperatures up to 280 °C. Optimal performance is achieved when combined with appropriate carrier resins and dispersing aids compatible with non-polar polymers.
Q3: How does PV Fast HGR 191 perform in terms of weatherfastness and lightfastness compared to conventional red pigments?
A: This pigment exhibits superior lightfastness and weatherfastness relative to many azo-based reds, particularly in outdoor applications. Its quinacridone backbone contributes to outstanding resistance to UV radiation and atmospheric exposure, making it well-suited for demanding exterior profiles and automotive trim components.
Q4: Can PV Fast HGR 191 be used in food-contact plastics, and what regulatory guidance applies?
A: PV Fast HGR 191 is not pre-approved for direct food-contact applications under major global regulatory frameworks. Formulators must verify compliance through full system assessment, including extraction testing and migration evaluation, in accordance with applicable regional requirements for final articles.
Q5: What are typical dosage levels when using this pigment in engineering thermoplastics like ABS or PC?
A: Dosage depends on the required shade depth and opacity, but PV Fast HGR 191 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—in engineering thermoplastics. Its high tinctorial strength allows efficient coloration without compromising mechanical properties.
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E-mail: wangxingqiang@ericwchem.com
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