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PAT-ADD DA 939 is a polymeric dispersing agent for use in industrial solvent-borne and water-borne paints and pigment concentrates.PAT-ADD DA 939 is compatible in a wide range of binder systems, including stoving enamels and 2 pack systems. Using PAT-ADD DA 939 results in low viscosity and high transparency properties.

Functions: Dispersant

Chemical Family: Polyurethanes (PU)

Labeling Claims: Amine-free, Aromatic Amines-free

Solid Content: 47.0 - 47.0 %

Technical Data Sheet
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Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

CASE Ingredients Features
Properties

PAT-ADD DA 939 is a polymeric dispersing agent showing strong adsorption properties onto a wide variety of pigment surfaces, contributing to best dispersion stability, low viscosity pigment dispersions and high transparency fir fine particle sized pigments. PATADD DA 939 is most suitable for the formulation of pigment concentrates

Benefits
  • Used in industrial paints and architectural paints
  •  Provides excellent color development and transparency 
  • Polymeric dispersing agent, for best resin compatibility

Applications & Uses

Application

Pigment dispersant for industrial paints, high concentrated RFPC, incl. carbon black. Polyurethane polymer, multi-anchoring. Free of aromatic solvents. HMV polymer.

Dosage & Addition

The optimal amount of PAT-ADD DA 939 to be used is system related, but generally is between 8 and 12% PAT-ADD DA 939, calculated on the total weight of pigment concentrate. If used in ready mixed paints, dosages of approx. 0,6 to 3% are suggested. The product is best added to the mill-base prior to the pigments. For carbon blacks a dosage of 20 to 60% (active ingredient) on pigment is recommended. The optimum concentration to be used depends on the individual requirements and conditions.

Properties

Appearance
Clear yellowish liquid
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity at 25°Capprox. 200cPs
Specific gravity at 25°Capprox. 1.01
Amine numberapprox. 15mgKOH/gm
Compositionpolymeric polyurethane with cationic pigment affinic groups
Solvent1-methoxy-2-propyl acetate/Butyl acetate/DPM
Solids content.approx. 47%