High Molecular Weight Polyurethane Compound Universal Dispersant For Coating

Product Overview

Anjeka-6240 is a high-performance dispersant designed for solvent-free, solvent-based, and water-based UV-curable printing inks and coating systems. It delivers exceptional dispersion stability for organic pigments and carbon black, with proven viscosity reduction performance across a wide range of formulations.

Key Benefits

High Dispersion Stability
Anjeka-6240 provides long-lasting dispersion stability for organic pigments and carbon black, keeping particles evenly distributed throughout the coating system and preventing re-agglomeration during storage.

Exceptional Viscosity Reduction
During the dispersion process, Anjeka-6240 effectively reduces system viscosity, allowing higher pigment loading without compromising application properties. This translates to lower formulation costs and improved processing efficiency.

Eliminates Thixotropic Flow
The formulation controls thixotropic behavior, giving coatings more predictable flow characteristics and easier application across different methods — spray, roll, or curtain coat.

Improved Long-Term Storage Stability
Coating systems formulated with Anjeka-6240 maintain their performance properties over extended storage periods. Reduced sedimentation and color drift mean fewer QC concerns and less waste.

Superior Visual Appearance
The highly deflocculating properties make this dispersant especially suitable for coating systems where appearance is critical. It notably improves color strength and transparency, enhances gloss, and reduces haze for a cleaner, more vibrant finish.

Application Areas

Highly Recommended For:

• UV-curable printing inks
• Pigment concentrates for ink systems
• Industrial coatings
• Wood coatings and furniture coatings

Compatible Systems:

• Solvent-free UV systems
• Solvent-based UV systems
• Water-based UV systems

Recommended Dosage

Dosage is calculated as supplied, based on pigment weight:

These are starting guidelines based on practical experience. Optimal dosage varies by pigment type, system formulation, and performance requirements. A series of lab tests is recommended to determine the best level for your specific application.

How to Add

For best results, follow this addition sequence:

1. Add Anjeka-6240 to the grinding resin and solvent first
2. Mix thoroughly until fully incorporated
3. Add the pigment and proceed with grinding

This sequence ensures the dispersant is properly adsorbed onto the pigment surface before the high-shear grinding process begins, maximizing dispersion efficiency.

Technical Data

Note: Values shown are typical and should not be used as specification limits. Contact us for batch-specific certificate of analysis.

Special Considerations

Pigment Surface Treatments
Certain organic pigments with surface treatments may reduce the effectiveness of this wetting and dispersing agent. If performance issues arise, try switching to untreated pigments of the same type. Surface treatment compatibility should be verified during formulation development.

Coil Coating Applications
When used in coil coatings, be aware of potential interaction between this cationic additive and acid catalysts. Free acids or epoxy-capped acids are more compatible than amine-capped acids in these systems.

Storage Conditions
Below 0 degrees C, separation or cloudiness may occur. This is reversible — simply heat to 20 degrees C and mix thoroughly before use. Do not store beyond 12 months for optimal performance.

Frequently Asked Questions

Q: Can Anjeka-6240 be used in water-based UV systems?
Yes. Anjeka-6240 is designed for multi-system compatibility, including solvent-free, solvent-based, and water-based UV-curable formulations. The 50% active content provides efficient performance across all three.

Q: Why does the recommended dosage vary so much between pigment types?
Different pigments have different surface areas, oil absorption values, and chemical properties. Carbon black, for example, has an extremely high surface area and requires significantly more dispersant than inorganic pigments to achieve equivalent dispersion stability.

Q: The product became cloudy after cold storage. Is it still usable?
Yes. Cloudiness or separation below 0 degrees C is normal and reversible. Heat to 20 degrees C and stir thoroughly before use. Performance is fully restored.

Q: How does it improve color strength and transparency?
By achieving better pigment dispersion and preventing re-agglomeration, Anjeka-6240 allows each pigment particle to perform at its maximum color potential. Better dispersion means more uniform light scattering and absorption, resulting in stronger color and higher transparency.

Q: What happens if I use too much dispersant?
Over-dosing may lead to foam issues, surface defects, or in some cases, reduced gloss. Always start at the lower end of the recommended range and increase incrementally while monitoring performance.

Packaging and Service

Available Packaging:

• 25 kg iron drum
• 180 kg plastic drum
• Custom packaging available for volume orders

Our Commitment:

• Inquiry response within 24 hours
• High-performance products at competitive prices
• In-house R&D and technical support
• Professional service from consultation to delivery
• Flexible customization for different packaging needs
• On-time delivery with no delays

Production Capacity:
We operate a 6,000-tonne annual capacity production base in Songzi Chemical Park, Hubei Province, established in November 2022. Stable large-scale production ensures consistent quality and lower unit costs for our partners.

Collaboration Opportunities:

• Contract manufacturing
• OEM and ODM partnerships

Our team:

Our company:

Our Certifcate&Patents