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High thermal stability suitable for processing temperatures up to 280 °C.
Excellent lightfastness and weather resistance in demanding outdoor applications.
Superior dispersibility in both polar and non-polar polymer matrices.
Low migration tendency, ensuring color consistency in PVC, polyolefins, and engineering plastics.
Compliant with major global regulatory frameworks including REACH and FDA 21 CFR §178.3297 for food-contact plastics.
Coloration of rigid and flexible PVC profiles, cables, and flooring.
Pigmentation of polypropylene (PP) and polyethylene (PE) fibers and injection-molded parts.
High-performance automotive interior plastics requiring long-term UV durability.
Masterbatch formulations for transparent and semi-crystalline thermoplastics.
Engineering plastics including ABS and polycarbonate blends for consumer electronics housings.
| Chemical Type | Quinacridone derivative |
| Product Form | Free-flowing powder |
| Appearance | Reddish-violet fine powder |
| Primary Applications | PVC, polyolefins, engineering plastics |
| Key Features | Thermally stable, low volatility, high tinctorial strength |
| Benefits | Consistent batch-to-batch color, minimal filter clogging in extrusion |
| Regulatory Status | REACH registered; compliant with FDA 21 CFR §178.3297 |
| Storage Conditions | Store in cool, dry place below 30 °C; protect from moisture and direct sunlight |
Q1: What is the primary chemical class and typical application field for PV FAST A4R?
A: PV FAST A4R is a high-performance quinacridone-based organic pigment, widely used in demanding applications such as automotive coatings, industrial finishes, and high-gloss plastics where excellent lightfastness, weather resistance, and color strength are required.
Q2: Is PV FAST A4R suitable for use in food-contact plastic applications?
A: PV FAST A4R is not pre-approved for direct food-contact applications under major global regulatory frameworks. Its suitability depends on final formulation compliance, processing conditions, and end-use migration assessments — users must conduct full regulatory validation per applicable jurisdiction and intended application.
Q3: How does PV FAST A4R perform in terms of thermal stability during polymer processing?
A: This pigment exhibits good thermal stability, typically withstanding processing temperatures up to approximately 280–300 °C for short residence times — making it compatible with common engineering thermoplastics such as polyolefins, ABS, and polycarbonate blends.
Q4: What dispersion characteristics can be expected in solvent-based and water-based systems?
A: PV FAST A4R demonstrates excellent dispersibility in both polar solvent-based systems (e.g., esters, ketones) and aqueous dispersions when processed with appropriate surfactants or polymeric dispersants. Optimal dispersion generally requires high-shear milling or bead-milling techniques to achieve maximum color development and gloss.
Q5: What is the recommended dosage range for achieving optimal color strength without compromising physical properties?
A: Dosage depends on the substrate, desired shade intensity, and performance requirements, but PV FAST A4R is typically used at low concentrations — generally ranging from 0.1% to 2% by weight — to deliver strong violet-red hues while maintaining good rheology and mechanical integrity in the final system.
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