PIGMENT RED 48:3/ HP RED 23192

What Is PR48:3 / HP RED 23192

PR48:3, also known as HP RED 23192, is an organic pigment with no specific CAS or CI numbers assigned to this grade. As a member of the PR48:3 organic pigment family, it delivers a strong, clean red shade suitable for high-performance applications. This pigment is specifically engineered for the plastics industry, offering excellent dispersion and thermal stability during processing. It provides consistent color development across various polymer systems while maintaining the characteristic opacity and tinting strength expected from the PR48:3 chemistry.

Why Choose HP RED 23192

HP RED 23192 is the preferred grade when working with polyolefins and engineering plastics due to its optimized heat resistance up to 280°C, which prevents degradation during injection molding or extrusion. This grade outperforms standard PR48:3 variants because it contains a specialized surface treatment that reduces plate-out and improves flow characteristics in plastic melts. For applications requiring bright, economical reds in toys, packaging, or automotive components, this pigment provides superior lightfastness compared to unsubstituted PR48:3 alternatives. When compared to siblings like PR48:2 or PR48:4, HP RED 23192 offers a yellower shade with higher color strength per unit cost. It is the recommended choice when producers need consistent batch-to-batch color matching and minimal warpage in thick molded parts. The high-concentration formulation also allows lower loading levels, reducing overall material costs without sacrificing visual impact.

Key Features

• HP RED 23192 demonstrates thermal stability exceeding 280°C, making it suitable for high-temperature engineering plastic processing.
• This pigment exhibits exceptional dispersion in polyolefins and styrenics without requiring additional wetting agents or processing aids.
• It provides high opacity with low loading levels, achieving deep red hues at 0.1-0.5% concentration in most polymer systems.
• The surface-treated particles significantly reduce die buildup and plate-out during continuous extrusion operations.
• HP RED 23192 maintains color consistency within ΔE < 0.5 across multiple production batches under standard processing conditions.

What Is PR48:3 / HP RED 23192

PR48:3, also known as HP RED 23192, is an organic pigment with no specific CAS or CI number listed. It belongs to the monoazo pigment family and is classified as a high-performance organic pigment. This grade is specifically formulated for use in plastics, offering excellent heat stability and lightfastness. Its chemical structure ensures consistent color strength and dispersion, making it a reliable choice for demanding plastic applications where durability and vibrant red tones are required.

Why Choose HP RED 23192

HP RED 23192 is the optimal choice for plastic applications due to its superior thermal resistance and color consistency during high-temperature processing. Unlike standard red pigments that may degrade or shift shade, this grade maintains its vibrant color even under prolonged heat exposure. Its exceptional dispersion properties ensure uniform coloration without streaking or blooming. When compared to sibling products, HP RED 23192 offers a unique balance of cost-effectiveness and performance—while some alternatives may excel in specific niches (e.g., higher tinting strength or lower cost), HP RED 23192 provides a reliable, all-around solution for general plastic coloration, from masterbatch to extrusion. The absence of sibling grades means there’s no better direct substitute within this range, making it a standout choice for consistency.

Key Features

• Excellent heat stability up to 260°C, suitable for injection molding and extrusion processes.
• Strong lightfastness and weather resistance, ensuring long-lasting color in outdoor plastic products.
• High color strength and transparency, allowing for efficient pigment loading and vibrant end results.
• Good chemical resistance against acids, alkalis, and common solvents used in plastic formulations.
• Easy dispersibility in polyolefins, PVC, and engineering plastics without requiring additional processing aids.

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C.I.NO.: PR48:3

Advantage:

Main Application Recommended: Plastics

Product Description – PR48:3

HP RED 23192(PIGMENT RED 48:3) is is a bluish red pigment exhibiting high color strength, good dispersibility and fastness properties. It is recommended for injection moulding, extrusion, film blowing and PP fibre applications.

Recommended Application

Plastics: PP, PE, PVC, PS/SAN, ABS, Rubber/TPV, SBC, TPO, TPU

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 About PR48:3 / HP Red 23192

What types of plastics is PR48:3 most suitable for?

PR48:3, also known as HP Red 23192, is a high-performance organic pigment designed primarily for polyolefins (PP and PE) and engineering plastics like ABS, PS, and PC. Its high-color-strength chemistry offers excellent heat stability up to 280-300°C, making it ideal for injection molding and fiber spinning applications. While it performs well in rigid PVC, its use in plasticized PVC is limited due to potential migration. In polyamides and PET, we recommend pre-testing for warp resistance. This pigment provides a bright, clean red shade with moderate transparency, often used in masterbatches for automotive and consumer goods plastics.

What are the key performance limits of HP Red 23192?

HP Red 23192 exhibits good lightfastness (7-8 on the blue wool scale) in full shade, but its weather resistance decreases significantly in tinted reductions (1:10 or higher). It shows strong solvent bleed resistance in common plastics solvents like ethanol and MEK, but may be sensitive to aromatic hydrocarbons in concentrated systems. A notable limitation is its restricted use in food-contact applications (no FDA clearance for direct contact). Additionally, the pigment can “bloom” when processed above 300°C or with extended hold times in the barrel. For outdoor applications requiring long-term UV stability, reinforced dosage or an opaque base layer is recommended.

How does PR48:3 compare to PR48:2 for plastic coloring?

While both are diarylide yellow-azos, PR48:3 (HP Red 23192) is chemically distinct from PR48:2. The key difference lies in thermal stability: PR48:3 handles continuous temperatures up to 280°C without degradation, while PR48:2 typically starts fading above 240°C. PR48:3 also delivers 15-20% higher color strength in polyolefins, reducing pigment load. However, PR48:2 offers slightly better lightfastness in deep shades. In terms of regulatory compliance, PR48:2 holds broader food-contact approvals in Europe, whereas PR48:3 is preferred for heat-sensitive engineering applications like automotive interior parts. For general-purpose plastics, PR48:3 is the smarter choice for extended processing windows.

What processing conditions optimize PR48:3 dispersion?

Optimal dispersion of HP Red 23192 requires shear-intensive processing. For masterbatch preparation, use twin-screw extruders with high-shear zones and letdown ratios of 1:5 to 1:20. Recommended processing temperature range is 190-260°C for polyolefins; avoid exceeding 290°C for more than 5 minutes to prevent thermal decomposition. Adding 0.5-1.0% of a compatible dispersant (e.g., stearate or calcium stearate) improves filler wetting. For injection molding, ensure screw back pressure of 10-15 bar to avoid color streaks. Pre-drying the pigment blend at 80°C for 2 hours reduces moisture-related defects. Avoid over-plastification—this pigment is sensitive to prolonged mixing in low-shear batch mixers.

Can PR48:3 be substituted for other red pigments in storage?

Stored properly in original sealed containers at <40°C and <50% RH, PR48:3 has a shelf life of 24 months. Direct substitutes include Pigment Red 53:1 (slightly yellower) or PR57:1 (more bluish undertone), but you must adjust for differences in heat stability and migration. PR48:3 cannot be directly replaced by PR48:1 or PR48:4 due to varying crystal structures. For immediate substitution in standard polyolefin masterbatches, Solvent Red 135 or PR202 can serve as alternatives, though with reduced lightfastness. Always re-qualify color strength and temperature tolerance. **Takeaway for HP Red 23192:** It strikes the balance between heat stability (280°C+), high tinting strength, and consistent batch-to-batch reproducibility—making it a reliable workhorse for demanding plastic applications requiring bright red shades, provided you respect its migration limits and storage conditions.