DISPERBYK® 2163 is a wetting and dispersing additive for solvent-borne coatings and pigment concentrates. It serves as a cost-effective alternative to DISPERBYK® 163.

Chemical Family: Polyurethanes (PU)

Features: High Color Strength, High Gloss, High Pigment Loading, Improves Coating Hiding Power , Reduces Mill Base Viscosity

Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Markets
Applications
Application Area
Coating End Applications
Industrial Additives End Use
Use Level
80 - 100% (Carbon Blacks), 30 - 60% (Organic Pigments), 4 - 5% (Titanium Dioxide), 15 - 20% (Inorganic Pigments)
Application Information

Coatings Industry


Special Features and Benefits
The additive deflocculates pigments and stabilizes them by means of steric hindrance. It provides equal electrical charge to the pigment particles. The resulting repulsion and the steric stabilization prevent a possible co-flocculation, which leads to flood and float-free color in pigment mixtures. The deflocculating properties of the additive increase gloss, color strength, transparency, and hiding power and reduce the viscosity of the millbase.
Applications
The additive is recommended as a substitute for DISPERBYK-163 in all applications, especially for solvent-borne coatings and pigment concentrates.

Recommended Levels
Amount of additive (as supplied) based upon pigment:
Inorganic pigments: 15-20%
Titanium dioxide: 4-5%
Organic pigments: 30-60%
Carbon blacks: 80-100%
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
Incorporation and Processing Instructions
For optimum performance, the additive must be incorporated into the millbase before addition of pigments. The resin and solvent components of the millbase are pre-mixed and then the additive is slowly incorporated while stirring continuously. Do not add the pigments until the additive has been fully distributed. Post-addition (to repair faulty batches) is possible as long as the product is added slowly and under high shear forces.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)0.98g/ml-
Solvent (Butyl Acetate)1--
Solvent (Methoxypropyl Acetate)1--
Solvent (Xylene)3--
Amine Value10mg KOH/g-
Flash Point26.0°C-
Non-Volatile Matter (20 min, at 150°C)45%-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Kinematic Viscosity (at 20°C)92 mm²/s
Ignition Temperaturemin. 392°FDIN 51794
Immiscible InWater--
Density (at 20°C)0.976g/cc4 (Oscillating U-tube, at 20°C)
Flash Point79°F48 (Abel-Pensky)
Vapor Pressure (at 20°C)12 hPa
Initial Boiling Point257°FEstimated
OdorCharacteristic--
AppearanceColorless to light yellow liquid--
Composition

Solution of modified polyurethane

Regulatory & Compliance