Afcona - 4550 is a high molecular weight, pH-independent polymeric dispersant designed for the deflocculation of pigments in water-based decorative and industrial paints.

Functions: Dispersant, Dispersant

Chemical Family: Polyacrylate, Modified

End Uses: 2K (2 component) Coating, Inorganic Pigments, Organic Pigments, Radiation Curable Coating, Waterborne Coating

Compatible Polymers & Resins: Acrylics, Alkyds, Epoxies (EP), Polyester - Melamine, Polyurethanes (PU)

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Enhanced TDS

Identification & Functionality

Features & Benefits

CASE Ingredients Features
Product Features
  • Afcona-4550 is a polymeric dispersant for stabilizing inorganic and organic pigments in water-based systems. Steric hindrance and electron repulsion offer very good stability performance with all types of pigments. This results in:
    • Better gloss
    • Color strength
    • Flocculation stability
    • Anti-flooding behavior
  • Afcona-4550 is pH-independent and offers wide compatibility with most chemistries commonly used in industrial coatings. Afcona-4550 does not influence the water resistance of the coating.
  • Afcona-4550 is also recommended for manufacturing of resin-free pigment concentrates for industrial paints.
  • At standard operating temperatures, Afcona- 4550 is completely water-soluble and does not require neutralization. However, neutralization will improve the viscosity reduction performance of this product.
  • Afcona-4550 is not water-soluble above 60°C (but the solubility will return once the temperature falls below 60°C). Therefore, keep milling temperatures below 60°C.

Note: Afcona – 4550 will become slightly hazy at temperatures below 5° C. This will not influence the performance of the product.

Applications & Uses

Applicable Processes
Compatible Polymers & Resins
Cure Method
Coating End Applications
Industrial Additives End Use
Addition and Dosage

Add Afcona-4550 according to the dosages listed below, which should be calculated based on the percent of active ingredient in the dispersant and the weight of pigment in the formula:

TiO2 2 - 3%
Other inorganic pigments 2 - 4%
Organic pigments 20 - 40%
Carbon blacks 20 - 60%

Afcona-4550 should be incorporated in the mill base before adding the pigments.


Physical Form
Soluble in
ValueUnitsTest Method / Conditions
Colormax. 6--
Active Ingredients48 - 52%-
Density (at 20°C)1.03 - 1.07g/cm³-
Amine Value20 - 35mg KOH/g-

Regulatory & Compliance

Certifications & Compliance
Chemical Inventories

Packaging & Availability

Packaging Information

55 lb and 397 lb non-returnable containers.

Storage & Handling

Shelf Life
3 years
Storage Condition

Afcona-4550 should be stored in a cool, dry place.