DISPERBYK® 2159 is a wetting and dispersing additive for UV-curing solvent-borne and solvent-free coating systems, as well as conventional solvent-borne coating systems. It is designed for dispersing and stabilizing untreated, offering excellent viscosity reduction and improving matting properties.

Chemical Family: Chemical Mixtures & Blends

Labeling Claims: Not Listed In California Proposition 65

Features: Matting

Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
CASE Ingredients Features

Applications & Uses

Markets
Applications
Application Area
Compatible Substrates & Surfaces
Cure Method
Coating End Applications
Use Level
4 - 18% (Coatings Industry)
Application Information

Coatings Industry
Special Features and Benefits

DISPERBYK-2159 is characterized by its highly effective dispersion and stabilization of untreated and treated silica-based matting agents. When combined with the matting agents, the use of DISPERBYK-2159 strongly reduces the viscosity and minimizes thixotropy whilst generating Newtonian flow behavior. This makes it possible to use a significantly greater quantity of matting agents. In addition, it is possible to achieve a much more homogeneous incorporation and orientation of the matting agents. DISPERBYK-2159 is particularly suitable for use in deep-matt, UV-curing and conventional solvent-borne wood and furniture coatings, and to produce solvent-borne matting agent pastes. The additive has outstanding compatibility both with all common oligomers and monomers and with a multitude of resins and organic solvents used in UV-curing and conventional solvent- borne wood and furniture coating systems.

Recommended Levels
4-18% additive (as supplied) based on the matting agent.
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
Incorporation and Processing Instructions
The additive should be pre-mixed and homogenized in the oligomer, monomer, resin or solvent blend before adding the matting agent.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)1.05g/ml-
Amine Value13mg KOH/g-
Flash Point45.0°C-
Non-Volatile Matter (20 min, at 150°C)60%-
SolventMethoxypropyl acetate--
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Dynamic Viscosity (at 20°C)223mPa.sP/K 20°C
Ignition Temperaturemin. 392°FDIN 51 794/ DIN prEN 14 522
Insoluble inWater--
Density (at 20°C)1.046g/cc-
Flash Point113°F48 (Abel-Pensky)
Vapor Pressure (at 20°C)3.1hPa-
Initial Boiling Pointmax. 100°C-
Melting Pointmax. 41°C-
pH Value (at 20°C, Concentration: 1%)6 Universal pH Value Indicator
OdorCharacteristic--
AppearanceAmber liquid--
Composition

Solution of polyester modified polyalkylene imine

Regulatory & Compliance

Chemical Inventories
OEM Specifications

Storage & Handling

Storage Conditions

Store at temperatures below 50 °C.