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-5006 | Tego-750W | WB | 40% | Particularly suitable for dispersing organic pigments in water. Reduces viscosity, does not provoke foam, increases paintwork gloss. | |
| ASTRA DISP-6706 | Tego-760W | WB | 50% | Particularly suitable for dispersing organic pigments (blue, violet) and soot in water. Reduces the viscosity of the system. Does not provoke foam. Improves the gloss of paintwork. | |
| ASTRA DISP-6806 | Tego-740W | WB | 100% | Good solubility in water, does not foam. Suitable for dispersing organic pigments, wets well, does not contain APEO. | |
| ASTRA DISP-7606 | Tego Dispers 652, Tego Dispers 651 | WB | 35% | Polyester dispersant is used as a primary dispersant and as a color enhancer in paint formulation. | |
| ASTRA DISP-7706 | Tego Dispers 650, Tego Dispers 652 | WB | 35% | Polyester dispersant is used as a primary dispersant and as a color enhancer in paint formulation. | |
| ASTRA DISP-8406 | Tego Dispers 651, Tego Dispers 652 | WB | 80% | Polyester dispersant is used as a primary dispersant and as a color enhancer in paint formulation. | |
| ASTRA DISP-8506 | Tego Dispers 650, Tego Dispers 655 | WB | 30% | Polyester dispersant is used as a primary dispersant and as a color enhancer in paint formulation. |
Need technical assistance?
Our team can help you select the right additive for your formulation.
Contact Technical Support