ASTRA DISP®
Dispersants
Dispersants for uniform distribution of solid pigments in liquid binders. Prevent flocculation, gloss loss, color shift, separation, sedimentation, and flow problems.
Why do we use dispersing additives?
The use of wetting and dispersing additives is crucial in the production of pigmented coatings. This is due to the need for a uniform distribution of solid pigments within the liquid binder solution. If the pigment grinding process is not optimized, various defects can occur, such as flocculation, reduced gloss, color shift, separation, Benard cells formation, and settling. This can also have an impact on the flow properties of the coating system, leading to issues like sagging and leveling.
Key Benefits
- Uniform Pigment Distribution — ensures pigments are evenly distributed throughout the binder
- Prevention of Flocculation — pigments stay separate, providing consistent color
- Enhanced Gloss — proper dispersion preserves high gloss levels
- No Color Shift — accurate color reproduction
- Prevention of Separation — long-term storage stability
- No Benard Cells — eliminates hexagonal patterns on coating surface
- Improved Flow and Leveling — eliminates sagging and poor leveling
Impact on Coating Performance
Using dispersing additives not only improves the visual and physical properties of coatings but also enhances their durability and longevity. A well-dispersed pigment system contributes to a more stable, vibrant, and defect-free final product, making it essential for industries where high-quality finishes are required.
P – organosoluble systems, B – water-based systems, UV – radiation-curable systems
Product Catalog
Download TDS| Active % | Feature | TDS | |||
|---|---|---|---|---|---|
| ASTRA DISP-1006 | DISPERBYK-130 | Solvent-based | 50% | Universal dispersant for all pigments, has high dispersion efficiency, improves gloss, reduces viscosity. Suitable for dispersing soot. For textile paints and varnishes. | |
| ASTRA DISP-1106 | DISPERBYK-108 | Solvent-based / UV-curable | 100% | Particularly suitable for inorganic pigments. Reduces system viscosity, improves fluidity, reduces dispersion time. | |
| ASTRA DISP-1306 | DISPERBYK-103 | Solvent-based / UV-curable | 50% | Suitable for inorganic pigments, especially titanium dioxide. Reduces the viscosity of the system, improves gloss and hiding power. Participates in wetting the substrate. | |
| ASTRA DISP-1506 | Inorganic pigments dispersant | Solvent-based / Water-based / UV-curable | 100% | Reduces the viscosity of the system, allows to increase the pigment content in the pigment paste. Has good compatibility with most resins. | |
| ASTRA DISP-2006 | Solsperse-24000 | Solvent-based / UV-curable | 100% | Particularly suitable for organic pigments. Good compatibility with most resins. High dispersing power, ensures stability during storage. Applicable for fillers and all types of pigments. | |
| ASTRA DISP-2106 | Solsperse-28000 | Solvent-based / UV-curable | 100% | Universal dispersant, good compatibility, strong dispersing ability. Particularly suitable for organic pigments. Provides storage stability. | |
| ASTRA DISP-2206 | Solsperse-32000 | Solvent-based / UV-curable | 100% | Good compatibility with most resins. Highly effective, especially suitable for organic pigments. Provides storage stability. Prevents pigment from floating. | |
| ASTRA DISP-2406 | Solsperse-39000 | Solvent-based / UV-curable | 100% | Good compatibility with most resins. Highly effective, especially suitable for organic pigments. Provides storage stability. Prevents pigment from floating. | |
| ASTRA DISP-2506 | Solsperse-32500 | Solvent-based / UV-curable | 40% | Hyperdispersant, good compatibility. Particularly suitable for organic pigments. Reduces system viscosity. Allows for increased pigment content. | |
| ASTRA DISP-3006 | DISPERBYK-164 | Solvent-based / UV-curable | 45% | Hyperdispersant, good compatibility. Particularly suitable for organic pigments. Reduces the viscosity of the system. Allows to increase the pigment content. Prevents uneven distribution of pigments in the film. |
Need technical assistance?
Our team can help you select the right additive for your formulation.
Contact Technical Support