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High thermal stability suitable for demanding processing conditions up to 280 °C.
Excellent lightfastness and weather resistance (ISO 105-B02, grade 7–8).
Outstanding migration resistance in PVC, polyolefins, and styrenics.
Strong tinctorial strength with high color purity and clean red shade.
Good dispersibility in both aqueous and solvent-based systems.
Automotive interior plastics (dashboards, trim, seating components).
General-purpose engineering plastics (ABS, PS, PC/ABS blends).
PVC profiles and rigid applications including window frames and siding.
Masterbatch formulations for polyolefin fibers and films.
Industrial coatings requiring durable red hues under UV exposure.
| Chemical Type | Quinacridone derivative |
| Product Form | Free-flowing powder |
| Appearance | Red-violet free-flowing powder |
| Primary Applications | Plastics, masterbatches, industrial coatings |
| Key Features | Thermal stability, lightfastness, migration resistance |
| Recommended Processing Temperature Range | Up to 280 °C (short-term) |
| Particle Size (D50) | Approx. 0.08–0.12 µm |
| Specific Surface Area | 35–45 m²/g |
Q1: What are the primary application areas for Novoperm HL70?
A: Novoperm HL70 is widely used in high-performance industrial coatings, automotive refinish systems, and plastic coloration—particularly where excellent heat stability, lightfastness, and gloss retention are required. It is especially suited for polyolefins, engineering thermoplastics, and solvent-based and high-solids coating formulations.
Q2: How does Novoperm HL70 compare to other high-strength red pigments in terms of dispersion behavior?
A: Novoperm HL70 exhibits good dispersibility in both polar and non-polar media, with low tendency toward flocculation under shear. Its optimized particle size distribution supports efficient wetting and stable pigment concentrates, particularly in demanding resin systems such as acrylics, polyesters, and polyolefin masterbatches.
Q3: Is Novoperm HL70 suitable for food-contact plastics?
A: Novoperm HL70 is not certified for direct food-contact applications. While it meets general industrial safety and handling requirements, it is not approved under major food-contact regulatory frameworks. Customers requiring food-safe colorants should consult Clariant’s dedicated portfolio of compliant pigments and obtain formal regulatory documentation prior to use.
Q4: What is the typical dosage range when using Novoperm HL70 in plastic coloration?
A: Dosage depends on the desired shade strength and substrate, but Novoperm HL70 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight in final plastic compounds. Its high tinctorial strength allows efficient color development even at minimal loading levels.
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E-mail: wangxingqiang@ericwchem.com
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