DISPEX Ultra FA 4437
DISPEX Ultra FA 4437
DISPEX® Ultra FA 4437 is a silicone-free surface active flow additive and colour acceptance improver for aqueous systems based on emulsions and aqueous resins. Due to its good wetting properties DISPEX Ultra FA 4437 ensures better wetting of difficult-to-wet substrates. The emulsifying effect of this product also prevents surface defects such as craters, fisheyes, pinholes and streaks caused by incompatible components. Furthermore, DISPEX Ultra FA 4437 has a strong affinity to pigment surfaces thereby reducing color acceptance problems.
DISPEX Ultra FA 4437 can be added either prior to grinding the pigments or afterwards to the finished paint. However, in case of color acceptance problems grinding with the pigments is preferable in order to ensure optimum efficiency.
DISPEX Ultra FA 4437 is made from a modified natural oil.
Recommended dosage: 0.1 – 1.0%, calculated on total formulation.
(Formerly known as Hydropalat® 3037)
Features & Benefits
- color acceptance improver for aqueous coatings
- surface active flow additive
- good wetting properties on difficult-to-wet substrates
- reducing color acceptance problems
- prevents surface defects such as craters, fisheyes, pinholes
- has a strong affinity to pigment surfaces
Properties
Physical form: yellowish, slightly cloudy, fluid to waxy
Typical properties
| density at 70° C (158 °F) | ~ 1.025 mPa . s |
| hydroxyl value | ~ 78.5 KOH/g |
| saponification value | ~ 60 |
| pH (5%) | ~ 7.5 |
| water content | ~ 0.15% |
Storage: Although DISPEX Ultra FA 4437 is freeze-thaw stable it should be stored at temperatures above 5 °C (41°F) to allow easy handling.
