Efka® PA 4401
High molecular weight dispersing agent
Efka® PA 4401 is a polymeric dispersant for stabilizing inorganic and organic pigments.
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0Efka® PA 4401 is a polymeric dispersant for stabilizing inorganic and organic pigments.
Description
Efka PU 4010 is a high-molecular-weight polymeric dispersant for stabilizing inorganic pigments, including carbon blacks, and also performs well in many organic pigments. It reduces grinding time, improves gloss, prevents flooding and floating, and delivers higher color strength. Due to its particularly good combination of price and performance, Efka PU 4010 is a very attractive substitute for conventional wetting and dispersing agents. Combinations of inorganic pigments stabilized with Efka PU 4010 and organic pigments stabilized with other Efka high-molecular-weight polymeric dispersants can be mixed together — for example, withEfka PU 4063, another BASF Efka polymeric dispersant from the same Additives Team that is particularly suited to organic pigments in high-quality solvent-based pigment pastes. For a similarly broad-application dispersant based on modified polyacrylate instead of polyurethane, see also Efka PA 4401.
| General | high-molecular-weight dispersing agent |
| Efka® PA 4401 is a polymeric dispersant for stabilizing inorganic and organic pigments. This results in: | |
| • improved gloss and DOI | |
| • reduced flooding | |
| • high color strength | |
• broad compatibility from low- to high-polarity systems, including nitrocellulose. | |
| chemical nature | modified polyacrylate |
Properties
| Physical form | clear, slightly yellowish liquid | |
| storage | Efka® PA 4401 should be kept in a cool and dry place. | |
typical properties (no supply specification) | solvent | n-butyl acetate/2-butanol |
| density at 20 °C (68 °F) | ~ 0.95 g/cm3 | |
| active ingredients | ~ 50 % | |
| flash point | 24 °C (75°F) | |
| amine value | ~ 51 mg KOH/g | |
| color | ≤ 5 | |
Application
Efka PU 4010 was developed as a general dispersing agent for all solvent-based paints, from high-performance industrial coatings to normal decorative paints. It can also be used in universal solvent-based pigment concentrates.
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