EFKA® FA 4620 belongs to the family of low-molecular-weight wetting and dispersing agents. It is well suitable for use in solvent- and water-based as well as solvent-free systems.

It is very efficient in wetting and dispersing fillers, extenders and inorganic pigments, particularly TiO2. This results in:

• reduced viscosity
• increased pigment and filler loading
• shorter dispersing time, increased mill efficiency

EFKA® FA 4620 can be used as sole dispersing agent together with resins, inorganic pigments and fillers. When combined with high-molecular-weight dispersants it can also be used for systems with organic pigments.

Applications

EFKA® FA 4620 is suitable for a broad range of resins. It is recommended for:

• automotive refinish coatings (inorganic particles, metallics)
• water-based industrial coatings
• solvent-based industrial coatings
• coil coating, especially TiO2
• composites (unsaturated isophthalic polyester [UPE] combinations)
• gelcoats, sheet- and bulk-molding compounds
• water-based architectural coatings
• solvent-based architectural coatings (high-solids and long-oil alkyds)

EFKA® FA 4620 can be used for systems ranging from nitrocellulose to high-solids alkyds, unsaturated polyester systems (gelcoats, sheetand bulk-molding compounds), coil coating and water-based systems (in which neutralization to above pH 7 is recommended).