General
low-molecular-weight dispersing agent
Efka FA 4644 reduces the interfacial tension between pigments or extenders on one side and the vehicle on the other side. Product benefits are:
• reduced dispersing time
• improved stabilization of the pigment dispersion
• reduced pigment sedimentation
• increased gloss
• improved flow
Chemical Nature
unsaturated polyamide and acid ester salts
Typical properties(no supply specification)
| solvent | xylene/n-butanol/monopropylene glycol |
| density at 20 °C (68 °F) | ~ 0.94 g/cm3 |
| active ingredients | ~ 52 % |
| flash point | ~ 25 °C (77°F) |
| acid value | ~ 25 mg KOH/g |
| amine value | ~ 16 mg KOH/g |
Applications
Efka FA 4644 is compatible with all coating systems (solvent-free or not). The pot-life of two-pack systems is not affected. Advantages offered by using Efka FA 4644 when dispersing organically treated bentonites are:
• shorter dispersing time
• easier handling of the bentonite gel
• improved storage stability
Why Sourcing Consistency Matters for Buyers
Because dispersing time, gloss, flow, and storage stability depend on consistent dispersant performance, buyers should confirm current specifications for EFKA FA 4644 against the latest technical data sheet before scheduling a production run. A supplier that consistently delivers this dispersant to its stated density, acid value, and amine value reduces the need to re-qualify a pigment dispersion recipe with every new batch.
This is particularly relevant for formulators dispersing organically treated bentonites or working with two-pack coating systems, where dispersant consistency is directly tied to gel handling, pot life, and storage stability. Buyers should confirm current batch documentation for EFKA FA 4644 against the latest technical data sheet before finalizing a production schedule.
What to Consider When Sourcing EFKA FA 4644
Buyers evaluating this dispersant for the first time should confirm compatibility with their specific coating system, since EFKA FA 4644 is compatible with solvent-free and solvent-based coatings but individual formulations should still be verified before scale-up. 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 density, acid value, and amine value.
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 EFKA FA 4644 for time-sensitive coating 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, EFKA FA 4644 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 approximately 25 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 FA 4644 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 storage stability performance described above.
Where to Source This Product
Thousands Chemicals supplies EFKA FA 4644 and related auxiliary agent products through our digital B2B marketplace, with supply chain resource support for formulators sourcing pigment dispersants for solvent-based and solvent-free coatings. 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 FA 4644 used for?
It is a low-molecular-weight dispersing agent that reduces the interfacial tension between pigments or extenders and the vehicle, improving dispersion stabilization, gloss, and flow.
What coating systems is EFKA FA 4644 compatible with?
It is compatible with all coating systems, whether solvent-free or solvent-based, and does not affect the pot-life of two-pack systems.
What is the chemical nature of EFKA FA 4644?
It is composed of unsaturated polyamide and acid ester salts, supplied with a density of approximately 0.94 g/cm³ at 20 degrees C, an acid value of approximately 25 mg KOH/g, and an amine value of approximately 16 mg KOH/g.
What benefits does EFKA FA 4644 provide when dispersing organically treated bentonites?
It offers shorter dispersing time, easier handling of the bentonite gel, and improved storage stability.
Can you provide technical documentation and bulk pricing for EFKA FA 4644?
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 FA 4644
Contact our team for pricing, documentation, and lead time on EFKA FA 4644. Our sourcing specialists can help confirm whether this dispersing agent matches your coating formulation requirements before you place an order.
