BYK-322 is a silicone-containing surface additive for solvent-borne coating systems, offering a slight reduction in surface tension and an increase in surface slip. Thermostable up to 250°C, it provides good leveling and defoaming properties. This additive functions as a leveling agent and belongs to the silicone chemical family.

Chemical Family: Polydimethylsiloxanes, Siloxanes

Features: Defoaming, Good Leveling, Improved Slip, Surface Tension Reduction

End Uses: Solventborne Coating

Enhanced TDS

Identification & Functionality

Chemical Family
Manufactured By
CASE Ingredients Functions
Technologies
Product Families

Features & Benefits

Applications & Uses

Coating End Applications
Use Level
0.01 - 0.4%
Product Application

Coatings Industry
Special Features and Benefits

The additive provides a slight reduction of the surface tension of coating systems. BYK-322 is a silicone leveling additive which does not stabilize foam and in many systems has a defoaming effect. It is thermostable up to 250 °C and does not negatively impact intercoat adhesion.
Recommended Use
The additive is particularly recommended for all solvent-borne coatings.
Recommended Levels
0.01-0.4% additive (as supplied) based upon total formulation. 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 can be incorporated during any stage of the production process, including post-addition.
Special Note
Unlike with so-called silicone oils, this additive is very user-friendly. Nevertheless, before use it should be determined in a series of tests whether foam is stabilized in certain systems. Similarly, the recoatability and cratering should be checked.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)0.95g/ml-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
AppearanceLiquid--
ColorLight brown--
Density (at 20°C)0.95g/cc4 (Oscillating U-tube, at 20°C)
Dynamic Viscosity (at 20°C)725mPa.s11 (NV, at 20°C)
Flash Pointmin. 100.00°C49 (Pensky-Martens)
Ignition Temperaturemin. 200°CDIN 51 794/ DIN prEN 14 522
Immiscible inWater--
Initial Boiling Pointmin. 200°CDerived
Melting Pointmax. - 10°CDerived
pH Value (Concentration - 1 % 20°C)7--
Vapor Pressure (at 2000°C)max. 1.0000000hPaDerived

Regulatory & Compliance