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High chroma, brilliant red shade with excellent lightfastness and weather resistance.
Optimized rheology for easy dispersion and stable viscosity in water-based systems.
Low volatile organic compound (VOC) content, supporting sustainable formulation requirements.
Excellent compatibility with common acrylic, styrene-acrylic, and vinyl polymer dispersions.
Consistent batch-to-batch color strength and hue reproducibility for reliable production control.
Architectural coatings including interior and exterior wall paints.
Industrial maintenance coatings for metal and concrete substrates.
Water-based wood stains and clear finishes.
Printing inks for packaging and decorative applications.
Plastic coloration of PVC, ABS, and polyolefin compounds (for masterbatch dilution).
| Chemical Type | Azo pigment-based aqueous dispersion |
| Product Form | Liquid color paste (non-settling) |
| Appearance | Homogeneous, viscous red liquid |
| Primary Applications | Water-based architectural and industrial coatings |
| Key Features | High tinctorial strength, low dusting, non-bleeding |
| Benefits | Reduced formulation complexity, improved color consistency, simplified handling |
| pH (10% aqueous dilution) | 7.5 – 8.5 |
| Storage Stability | ≥12 months at 5–30 °C in sealed original container |
Q1: What types of polymer systems is Hostafine Red SP-HF3S specifically designed for?
A: Hostafine Red SP-HF3S is a high-performance, heat-stable color paste formulated primarily for use in polyolefins—especially polypropylene (PP) and polyethylene (PE)—including applications requiring processing at elevated temperatures. It also demonstrates good compatibility in certain engineering thermoplastics such as polyamide (PA) and thermoplastic elastomers (TPE), subject to compatibility testing.
Q2: How does the HF3S grade differ from other Hostafine Red SP variants?
A: The ‘HF3S’ designation indicates a specialized formulation optimized for high-flow, high-dispersion performance in melt-processing operations—particularly injection molding and thin-wall extrusion. It features enhanced pigment wetting and reduced agglomeration tendency compared to standard SP grades, supporting consistent color development and minimal filter pressure buildup.
Q3: Is this color paste suitable for food-contact applications?
A: Hostafine Red SP-HF3S is manufactured under Clariant’s quality management system and may be used in food-contact plastics where permitted by applicable local regulations. However, final compliance depends on the full formulation, processing conditions, and end-use requirements—formulators must conduct full regulatory assessment and migration testing as appropriate for their specific application.
Q4: What is the typical dosage range for achieving full opacity or strong chroma in polypropylene?
A: Dosage depends on the desired shade intensity, base polymer, and processing method—but Hostafine Red SP-HF3S is typically used at low concentrations, generally ranging from 0.1% to 2% by weight in PP. Its high tinctorial strength allows efficient coloration even at the lower end of this range, especially when uniform dispersion is achieved.
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