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High thermal stability suitable for demanding polymer processing up to 280 °C.
Excellent lightfastness and weather resistance, meeting ISO 105-B02 (≥7) and ISO 105-A02 (≥6) standards.
Outstanding migration resistance in PVC, polyolefins, and engineering thermoplastics.
Strong tinting strength with clean, bluish-red shade and high chroma.
Low volatile organic compound (VOC) content, compliant with stringent regulatory requirements for consumer goods.
Coloration of rigid and flexible PVC for building & construction profiles and cables.
Masterbatch applications in polypropylene (PP) and polyethylene (PE) for automotive interior parts.
Pigmenting polycarbonate (PC) and ABS for electronic housings and appliance components.
High-performance colorants for synthetic fibers, including polyester (PET) spun-dye applications.
Specialty inks for packaging gravure and flexographic printing requiring heat stability.
| Chemical Type | Condensed Azo Pigment (C.I. Pigment Red 254) |
| Product Form | Free-flowing powder |
| Appearance | Reddish-brown to violet-red fine powder |
| Primary Applications | Polymer coloration, masterbatches, synthetic fibers, industrial inks |
| Key Features | High thermal stability, low migration, excellent dispersibility |
| Benefits | Consistent batch-to-batch color, reduced processing defects, extended product lifetime |
| Regulatory Compliance | REACH registered; compliant with FDA 21 CFR §178.3297 (for indirect food contact) |
| Particle Size (D50) | 0.08–0.12 µm (by laser diffraction) |
Q1: What is the primary chemical class and typical application field for Novoperm HR 83?
A: Novoperm HR 83 is a high-performance perylene-based organic pigment, widely used in demanding industrial coatings, automotive refinish systems, and high-gloss plastic applications where exceptional lightfastness, thermal stability, and color strength are required.
Q2: Is Novoperm HR 83 suitable for use in food-contact plastics or packaging inks?
A: Novoperm HR 83 is not pre-qualified for direct food-contact applications. Its suitability depends on final formulation compliance with applicable regional regulations, and users must conduct full regulatory evaluation—including migration testing—based on the specific end-use and processing conditions.
Q3: How does Novoperm HR 83 perform under elevated temperature during processing?
A: This pigment exhibits excellent thermal stability, retaining its color integrity and dispersion characteristics during standard thermoplastic processing (e.g., injection molding and extrusion), making it well-suited for engineering plastics such as polyolefins and polyesters.
Q4: What are recommended dispersion methods for optimal color development in solvent-based coatings?
A: High-shear dispersion using media mills or bead mills is recommended to achieve full pigment deagglomeration and maximum chroma. Pre-wetting with compatible resins and solvents prior to milling enhances efficiency and batch-to-batch consistency.
Q5: Does Novoperm HR 83 require surface treatment for compatibility in polar polymer systems?
A: While Novoperm HR 83 offers good inherent compatibility across many resin systems, optimized performance in highly polar matrices—such as certain polyamides or polyurethanes—may benefit from tailored dispersant selection or post-treatment, depending on formulation objectives and rheological requirements.
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E-mail: wangxingqiang@ericwchem.com
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