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Efka® FA 4620
General
EFKA® FA 4620 is a solvent-free wetting and dispersing agent with acidic groups, helps to wet and disperse solid particles (e.g. CaCO3, ATH) in unsaturated polyester resin systems, this results in improved wetting and incorporation of fillers and extenders, reduced viscosity of the paste/compound, and increased filler and extender loading. EFKA® FA 4620 is suited for filled unsaturated polyester systems (e.g. SMC/BMC, gel coats, car putties) or combinations with polystyrene, polyvinylacetate and styrene-butadiene copolymers (e.g. LS- or LP formulations).
Benefits
- Broad compatibility in a wide range of resin systems
- Suitable for high gloss systems
- High pigment and filler loading possible
- Excellently suited for solvent-based and solvent-free coatings and printing inks
- Strong reduction of mill-base viscosity
- Very efficient in wetting and dispersing of titanium dioxide and other inorganic pigments
