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Highly concentrated, solvent-based blue color paste with excellent chroma and clean hue.
Optimized for compatibility with polyolefins, including PP and PE, enabling uniform dispersion without agglomeration.
Good thermal stability up to 260 °C, suitable for demanding extrusion and injection molding processes.
Low migration and blooming resistance, ensuring color integrity in long-term applications.
REACH-compliant formulation with no intentionally added heavy metals or restricted substances.
Polypropylene (PP) packaging films and containers.
Polyethylene (PE) blow-molded bottles and caps.
Automotive interior components requiring consistent, lightfast blue tones.
Household appliances and technical parts where color consistency and process robustness are critical.
Non-food industrial containers requiring regulatory-compliant pigmentation.
| Chemical Type | Organic pigment dispersion (C.I. Pigment Blue 15:3) |
| Product Form | Viscous liquid color paste |
| Appearance | Homogeneous dark blue paste |
| Primary Applications | Polyolefin (PP/PE) coloring |
| Key Features | High concentration, low dusting, excellent dispersibility |
| Benefits | Reduced dosing, improved batch-to-batch consistency, simplified handling |
| Regulatory Compliance | REACH registered; compliant with EU Directive 2002/72/EC for plastics in contact with food (subject to final formulation review) |
| Storage Conditions | Store at 10–30 °C in original sealed container; avoid freezing and prolonged exposure to UV light |
Q1: What is the primary application field for Hostasin Blue A2R 30 Color Paste?
A: Hostasin Blue A2R 30 is primarily formulated for coloring polyolefins—especially PP and PE—in applications requiring good thermal stability and dispersion, such as injection-molded consumer goods, technical parts, and thin-walled packaging.
Q2: How does Hostasin Blue A2R 30 differ from standard pigment dispersions?
A: As a high-concentration color paste, it offers superior pigment wetting and stabilization in a polyolefin-compatible carrier system, enabling more consistent dosing, reduced dust generation, and improved batch-to-batch color reproducibility compared to dry pigments or lower-viscosity liquid concentrates.
Q3: Is this product suitable for food-contact applications?
A: Hostasin Blue A2R 30 is designed for use in polyolefin compounds intended for indirect food contact, subject to compliance with applicable regional regulatory frameworks. Final approval depends on the full formulation, processing conditions, and end-use requirements—consult Clariant’s regulatory documentation and conduct appropriate migration testing as needed.
Q4: What are the recommended processing conditions for optimal dispersion?
A: For best results, incorporate the paste during the compounding stage using standard twin-screw extrusion. Ensure adequate melt temperature (typically 180–240 °C) and sufficient residence time to achieve full dispersion; avoid excessive shear or prolonged thermal exposure that may affect color strength or stability.
Q5: How should Hostasin Blue A2R 30 be stored to maintain performance?
A: Store in original sealed containers at temperatures between 10 °C and 30 °C, away from direct sunlight and sources of heat. Avoid freezing, and protect from moisture ingress—prolonged storage under non-recommended conditions may lead to viscosity changes or pigment settling.
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E-mail: wangxingqiang@ericwchem.com
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