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
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 |
Applications
Efka PA 4401 is recommended for all kinds of high-quality solventbased industrial coatings including automotive topcoats as well as pigment concentrates.Care should be taken with Efka PA 4401 because of its tendency to yellowing and gelling when combined with chlorinated polymers. It also has a tendency to yellowing when combined with solvent-free epoxies.
Why Sourcing Consistency Matters for Buyers
Because gloss, DOI, and color strength depend on consistent dispersant performance, buyers should confirm current specifications for this dispersant against the latest technical data sheet before scheduling a production run. A supplier that consistently delivers Efka PA 4401 to its stated amine value and active content reduces the need to re-qualify a pigment dispersion recipe with every new batch.
This is particularly relevant for formulators producing high-quality solvent-based industrial coatings and automotive topcoats at volume, where dispersant consistency is directly tied to gloss, DOI, and resistance to flooding. Buyers should confirm current batch documentation for this dispersant against the latest technical data sheet before finalizing a production schedule.
What to Consider When Sourcing Efka PA 4401
Buyers evaluating this dispersant for the first time should confirm compatibility with their specific resin system, since Efka PA 4401 has a tendency toward yellowing and gelling when combined with chlorinated polymers, and a tendency toward yellowing when combined with solvent-free epoxies. Requesting the current certificate of analysis alongside the technical data sheet is a practical way to confirm that a given batch matches the manufacturer’s published amine value and density.
Packaging format, minimum order quantity, and shipping method should also be confirmed directly with the supplier, since these factors affect how this dispersant reaches a production facility. Buyers sourcing this dispersant for automotive topcoat or pigment concentrate production schedules should discuss lead time and logistics requirements before finalizing an order.
General Handling and Storage Guidance
As with other solvent-based polymeric dispersants, this dispersant should be stored in accordance with the supplier’s technical data sheet and safety data sheet, typically in a cool, dry, well-ventilated area away from direct sunlight and sources of ignition, since its flash point of 24 degrees C means standard solvent-handling precautions apply. Personnel handling this material should follow the procedures specified in the safety data sheet.
Buyers should request and review the current safety data sheet for Efka PA 4401 prior to receipt, and confirm that on-site storage conditions are compatible with the supplier’s recommended shelf life and temperature range. Proper inventory rotation helps maintain the gloss and color strength performance described above.
Where to Source This Product
Thousands Chemicals supplies this dispersant and related auxiliary agent products through our digital B2B marketplace, with supply chain resource support for formulators sourcing pigment dispersants for solvent-based industrial coatings and automotive topcoats. Material handling practices referenced on this page are benchmarked against recognized international testing and handling practices published by ASTM International. Our team can help confirm packaging, lead times, and technical documentation for your target application and order volume.
FAQ
What is Efka PA 4401 used for?
It is a high-molecular-weight polymeric dispersant used to stabilize inorganic and organic pigments in solvent-based coatings, improving gloss, DOI, and color strength.
What coating systems is Efka PA 4401 recommended for?
It is recommended for high-quality solvent-based industrial coatings, including automotive topcoats and pigment concentrates.
What is the chemical nature of Efka PA 4401?
It is a modified polyacrylate, supplied with a density of approximately 0.95 g/cm³ at 20 degrees C and an amine value of approximately 51 mg KOH/g.
Are there compatibility precautions for Efka PA 4401?
Yes, care should be taken when combining it with chlorinated polymers due to a tendency toward yellowing and gelling, and with solvent-free epoxies due to a tendency toward yellowing.
Can you provide technical documentation and bulk pricing for Efka PA 4401?
Yes, technical data sheets and SDS documentation are available on request, and our team can provide bulk pricing and lead times based on your target volume and delivery location.
Get a Quote for Efka PA 4401
Contact our team for pricing, documentation, and lead time on Efka PA 4401. Our sourcing specialists can help confirm whether this pigment dispersant matches your coating formulation requirements before you place an order.
