General
Efka PU 4063 is a polymeric wetting and dispersing agent for the deflocculation of inorganic and organic pigments in high-quality solvent-based pigment pastes. This results in:
- reduced dispersing time
- improved gloss
- prevention of flooding and floating
- higher color strength
Chemical Nature
modified polyurethane
Typical properties(no supply specification)
| Solvent | butyl acetate / methoxypropyl acetate / solvent naphta |
| density at 20 °C | ~ 0.98 g/cm3 |
| active ingredients | ~ 50 % |
| flash point | 24 °C |
| acid value | ~ 13 mg KOH/g |
| amine value | ~ 6 mg KOH/g |
| color | ≤ 6 |
Applications
Efka PU 4063 is a dispersing additive for organic and inorganic pigments in high-quality solvent-based pigment pastes. Efka PU 4063 reduces the dispersing time and the mill base viscosity and thus facilitates the formulation of highly concentrated pigment pastes.
After the pigment paste has been blended into paint, Efka PU 4063 prevents flooding and floating of pigments and promotes excellent gloss and high color intensity.
Efka PU 4063 is readily compatible with a wide range of binder types. Pigment pastes based on Efka PU 4063 can therefore be used in 2-component polyurethane paints, 2-component epoxy paints, unsaturated polyester, stoving paints, and air-drying paints.
Why Sourcing Consistency Matters for Buyers
Because dispersing time, mill base viscosity, gloss, and color strength depend on consistent dispersant performance, buyers should confirm current specifications for EFKA PU 4063 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 producing highly concentrated pigment pastes for two-component polyurethane, two-component epoxy, unsaturated polyester, stoving, and air-drying paints, where dispersant consistency is directly tied to flooding, floating, and final gloss. Buyers should confirm current batch documentation for EFKA PU 4063 against the latest technical data sheet before finalizing a production schedule.
What to Consider When Sourcing EFKA PU 4063
Buyers evaluating this dispersant for the first time should confirm compatibility with their specific binder system, since EFKA PU 4063 is readily compatible with a wide range of binder types 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 PU 4063 for time-sensitive coating or pigment paste 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 PU 4063 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 PU 4063 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 color strength and gloss performance described above.
Where to Source This Product
Thousands Chemicals supplies EFKA PU 4063 and related auxiliary agent products through our digital B2B marketplace, with supply chain resource support for formulators sourcing pigment dispersants for solvent-based 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 PU 4063 used for?
It is a polymeric wetting and dispersing agent used for the deflocculation of inorganic and organic pigments in high-quality solvent-based pigment pastes.
What binder systems is EFKA PU 4063 compatible with?
It is compatible with a wide range of binder types, including two-component polyurethane paints, two-component epoxy paints, unsaturated polyester, stoving paints, and air-drying paints.
What is the chemical nature of EFKA PU 4063?
It is a modified polyurethane, supplied with a density of approximately 0.98 g/cm³ at 20 degrees C, an acid value of approximately 13 mg KOH/g, and an amine value of approximately 6 mg KOH/g.
What benefits does EFKA PU 4063 provide in pigment pastes?
It reduces dispersing time and mill base viscosity, facilitates highly concentrated pigment pastes, prevents flooding and floating after the paste is blended into paint, and promotes excellent gloss and high color intensity.
Can you provide technical documentation and bulk pricing for EFKA PU 4063?
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 PU 4063
Contact our team for pricing, documentation, and lead time on EFKA PU 4063. Our sourcing specialists can help confirm whether this dispersing additive matches your pigment paste formulation requirements before you place an order.
