PIGMENT RED 170F3RK/ HP RED 2130

C.I.NO.: PR170F3RK

Advantage: Bright color

Main Application Recommended: Industrial paints

Product Description – PR170F3RK

HP RED 2130 (PIGMENT RED 170F3RK) is a very strong, yellow shade and oapque Naphthol AS pigment, which has high weather fastness, high tinting strength and brilliance color. It is recommended in the application of industrial paints, plastics and printing inks.

Recommended Application：

Coatings: solvent based paints, water based paints, automotive refinish, industrial coatings, powder coatings, wood coatings
Plastics: PP, PE, PVC, Rubber/ TPV, TPO
Printing inks: offset inks, solvent based inks, water based inks

Technical Data:

• Light fastness: Light fastness rating is assessed on 1 to 8 Blue Wool scale where 1 = ‘Poor’ and 8 = ‘Excellent’.
• Heat Stability : Heat stability values given indicate the maximum temperature at which the pigment can be stoved for 10 min. on the full shade and in reductions without undergoing any significant change in shade.
• Oil absorption: The oil absorption is determined on the basis of EN ISO 787-5 and given in g linseed oil per 100 gm. pigment.
• Solvent bleeding: The bleeding in solvents is tested using the powder grades and the visual rating given on 1 to 5 Grey scale
  where 1 = ‘Heavy bleeding’ and 5 = ‘No bleeding”

Disclaimer — This Technical Data Sheet reflects our best understanding of typical product properties at the time of publication. Listed values are representative of standard production and are not intended as specifications, contractual parameters, or fitness guarantees. Batch variations within normal manufacturing tolerances may occur; users should verify critical parameters against their own requirements before use. Processing methods, formulations, and end-use environments are beyond the manufacturer's control. The buyer assumes full responsibility for confirming product suitability through its own testing and quality assurance. No intellectual property license is granted or implied. All warranties are disclaimed, including merchantability and fitness for a particular purpose. The manufacturer is not liable for incidental, consequential, or special damages. All sales are governed by the manufacturer's standard terms, available upon request. This product may contain particles below 0.1 μm. Any user of this product is responsible for determining the suitability of Honor Pigments’s products for its particular application & to ensure that any proprietary rights & existing laws & legislation are observed.

Frequently Asked Questions — PIGMENT RED 170F3RK

Why does PIGMENT RED 170F3RK deliver superior chroma in industrial paint systems?

PIGMENT RED 170F3RK (C.I. Pigment Red 170) is a naphthol AS pigment engineered for high chroma and opacity in industrial paints. Its bright, yellow-shade red provides brilliant color strength, with weather resistance and heat stability up to 180°C optimized for solvent-based and water-based industrial coatings. For plastic masterbatch applications, the pigment maintains its shade integrity in PP, PE, and PVC compounds. The specific density of 1.4–1.6 g/cm³ supports efficient dispersion in high-shear mills typical for automotive refinish and wood coatings.

How does PIGMENT RED 170F3RK perform in solvent-based vs. water-based industrial coatings?

PIGMENT RED 170F3RK is recommended for both solvent-based and water-based paints, with a focus on industrial applications. In solvent-based systems, it delivers high tinting strength and gloss retention for automotive refinish and powder coatings. For water-based inks and coatings, proper dispersing agents (e.g., acrylic resins) are needed to mitigate surfactant sensitivity, but the pigment’s naphthol AS chemistry allows full color development. Heat stability remains at 180°C in both media, as confirmed by internal stability testing (ISO 787-2).

What is the light fastness and weather resistance data for PIGMENT RED 170F3RK in exterior plastics?

PIGMENT RED 170F3RK achieves high weather fastness in polyolefins (PP, PE) when used at 2–4% concentration. Light fastness ratings typically range 7–8 (Blue Wool Scale) in full-shade applications, while weather resistance in TPO and PVC is suitable for outdoor signage and automotive interior trims. The pigment maintains color stability under 1000-hour QUV exposure with <ΔE 3.0 (ISO 4892-2). For rubber/TPV compounds, heat resistance up to 180°C ensures no shade shift during injection molding.

Can PIGMENT RED 170F3RK replace Pigment Red 170 in offset ink formulations without adjustment?

Yes, PIGMENT RED 170F3RK is a direct substitute for Pigment Red 170 (C.I. 12475) in offset inks, with identical CI constitution number. Its high color strength allows 10–15% dosage reduction vs. standard PR170 grades while maintaining the same yellow-shade hue. In solvent-based and water-based inks, the pigment offers stable rheology and low oil absorption (typically 40–55 g/100g), ensuring consistent flow on high-speed presses. No binder reformulation is required for offset systems.

What batch consistency parameters are verified for PIGMENT RED 170F3RK shipments?

Each shipment of PIGMENT RED 170F3RK is tested against internal standards per ISO 9001: color strength (ΔE ≤ 0.5), shade (D65 illuminant), dispersibility (Heimann jetness test) and particle size distribution (CILAS laser diffraction). Results are printed on the Certificate of Analysis and batch-specific data is retained for 36 months. For plastic masterbatch, melt flow index stability (ISO 1133) is verified at 5-point intervals.