Product description: TEGOMER® DA 646 is a wetting and dispersing additive based on polyether technology and can be used as dispersant in liquid or solid concentrates. Application: TEGOMER® DA 646 is a liquid dispersing additive used for the surface treatment of pigments to improve dispersion properties of: - organic pigments
- inorganic fillers e.g. talc
- inorganic pigments e.g. titanium dioxide, ultramarine blue, iron oxides
TEGOMER® DA 646 can be used for the manufacturing of liquid color pastes, based on oils, polyols or phthalates, containing:- organic pigments
- carbon blacks
Due to its HLB balance the additive is even suitable for the manufacturing of water-based pigment concentrates. These can be used in water-based or hydrophobic let-down systems afterwards. Benefits: The use of TEGOMER® DA 646 offers several ad-vantages: - high loaded pigment pastes or masterbatches
- excellent rheological properties without gelling in liquid pastes
- improved durability
- higher color strength
- less speck formation
- improved mechanical properties
Surface treated pigments with TEGOMER® DA 646 can be used in hydrophilic and hydrophobic surroundings.Information provided by Evonik |