Pigment Blue 15:2 - High Tinting Strength for Paint and Coatings

Pigment Blue 15:2 sets the benchmark for intense, stable blue coloration in modern coatings, combining exceptional tinting strength with unparalleled weatherfastness. As a copper phthalocyanine derivative, this β-phase pigment delivers brilliant greenish-blue hues (CIE Lab*: L* 28±2, a* –18±1, b* –45±2) while maintaining chemical inertness across diverse resin systems. Engineered for industrial coatings, architectural paints, and specialty finishes, it achieves optimal color performance with minimal loading, reducing formulation costs without compromising durability.

‌Core Performance Advantages‌

‌Color Intensity & Purity‌

• Tinting strength 320% vs. standard phthalo blues (ISO 787-24)
• Chroma C*ab ≥55 in full-shade applications (CIE 15:2004)
• Metamerism index <0.8 across D65/A/F11 illuminants

‌Durability & Stability‌

• ΔE <1.5 after 3,000 hours QUV-B exposure (ASTM G154)
• Thermal stability to 260°C (DIN 53775 TGA analysis)
• Chemical resistance: ≤Grade 4 in ASTM D1308 acid/alkali tests

‌Processing Efficiency‌

• Achieves Hegman 7+ fineness in 30-minute dispersion cycles
• Viscosity increase <10% at 15% pigment loading (ASTM D2196)
• Zero flocculation in high-shear waterborne systems

‌Application Excellence‌

‌Architectural Coatings‌

• Exceeds 25-year color retention in exterior latex paints (ISO 2810)
• 98% UV absorption (300–400 nm) for fade-resistant finishes
• Meets Green Seal GS-11 standards for low-VOC formulations

‌Automotive Finishes‌

• Enables 1:50 reduction vs. TiO₂ in metallic basecoats
• Passes GM 9540P cyclic corrosion testing
• Maintains 90° gloss in 2K polyurethane clearcoats

‌Industrial Protective Coatings‌

• Withstands 1,500-hour salt spray (ASTM B117) in epoxy primers
• Compatible with zinc-rich coatings (≤0.5% reactivity)
• Non-bleeding in chemical tank linings (ASTM D1308)

‌Packaging & Printing Inks‌

• FDA 21 CFR 178.3297 compliance for food-contact coatings
• Achieves 98% rub resistance in alcohol-based flexo inks
• Color strength consistency ±2% across batches

‌Technical Specifications‌

• ‌Color Index‌: C.I. Pigment Blue 15:2
• ‌CAS No.‌: 147-14-8
• ‌Crystal Phase‌: β-form phthalocyanine
• ‌Density‌: 1.60–1.65 g/cm³ (ISO 787-10)
• ‌Oil Absorption‌: 35–40 g/100g (ISO 787-5)
• ‌Particle Size‌: 0.05–0.15 μm (SEM analysis)
• ‌pH Value‌: 6.5–7.5 (ISO 787-9)

‌Formulation Guidelines‌

‌Waterborne Systems‌

• Pre-disperse with 15% polyurethane dispersant (40% solids)
• Mill using 0.3 mm YSZ beads to Hegman 7.5
• Stabilize with 0.4% associative thickener (HEUR type)

‌Solvent-Borne High-Gloss Finishes‌

• Optimum loading: 8–12% in alkyd/acrylic blends
• Use 2% alkylphenol-free wetting agent
• Achieve DOI >85 with 0.3% silicone flow additive

‌Powder Coatings‌

• Premix with 1.2% flow control agent (TGIC-free)
• Extrude at 90–105°C barrel temperature
• Post-add 0.5% tribo-charging modifier

‌Regulatory & Sustainability‌

• REACH/SCIP compliant (SVHC-free, <0.1% PAHs)
• ECO PASSPORT by OEKO-TEX® certified
• 30% reduced carbon footprint vs. conventional production
• Closed-loop wastewater treatment system

‌Packaging & Storage‌

Supplied in 25 kg polyethylene-lined paper bags with moisture barriers (<0.2% H₂O). Bulk quantities available in 500 kg FIBCs with UV-protective coating. Store at 10–30°C (RH <60%); 48-month stability guaranteed.

‌Technical Support‌

• Digital color matching (CIELAB/RGB/CMYK)
• Accelerated weathering prediction models
• Rheology optimization using rotational rheometry
• Regulatory documentation for global compliance

Pigment Blue 15:2 redefines value in high-performance coloration, offering formulators an optimal balance between chromatic intensity, processing efficiency, and long-term durability. Its engineered surface characteristics ensure rapid dispersion across all major coating technologies while delivering color consistency unmatched by conventional phthalo blues. For coating specialists seeking to achieve premium aesthetics with reduced environmental impact, this pigment provides a future-ready solution that excels in both industrial and decorative applications.

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