BYK-066 N is a silicone-based defoamer suitable for solvent-free and solvent-borne coatings, printing inks, and ambient-curing plastic systems based on epoxy resins and polyurethane. It is a standard defoamer for solvent-borne systems, offering a good balance of effectiveness and compatibility.

Chemical Family: Ketones

Labeling Claims: Solvent-free

Compatible Polymers & Resins: Epoxies (EP), Polyurethanes (PU)

End Uses: Polymer Concrete, Solventborne Coating, Solventless & High Solids Coating, Wood Coating

Enhanced TDS

Identification & Functionality

Chemical Family
Manufactured By
CASE Ingredients Functions
Technologies
Product Families

Features & Benefits

Labeling Claims

Applications & Uses

Markets
Applications
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Coating End Applications
Plastics & Elastomers End Uses
Use Level
0.1 - 0.7% (Coatings and printing inks industry), 0.1 - 0.7% (Ambient curing systems)
Product Application

Coatings and Printing Inks Industry
Special Features and Benefits

BYK-066 N is a highly effective defoamer for solvent-borne and solvent-free coating systems and printing inks, which offers optimal defoaming at a very low percentage of incompatible substances.
 

Recommended Levels
0.1-0.7% 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
To achieve optimal defoaming, the defoamer should be added to the millbase. If it is incorporated at a later time, sufficient shear forces must be ensured in order to achieve good defoamer distribution and to prevent crater formation. Ambient Curing Systems


Special Features and Benefits
BYK-066 N is a highly effective air release agent, which reduces the formation of foam during the manufacture and processing of epoxy resin and polyurethane systems in order to achieve bubble- free surfaces.


Recommended Use
Especially recommended for floorings and casting systems (polymer concrete, mineral casting) on epoxy resin and polyurethane basis.


Recommended Levels
0.1-0.7% 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
Incorporate into resin before adding the other components. Can also be added to complete systems.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Flash Point17°C-
SolventsDiisobutyl ketone--
Non Volatile Matter0.7%-
Density (at 20°C)0.81g/ml-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Ignition Temperaturemin. 392°FDIN 51794
Density (at 20°C)0.81g/cc4 (Oscillating U-tube, at 20°C)
Lower Explosion Limit (0.1 mg/m³)1.1%V-
Explosion Limits (Upper)6.2%V-
Flash Point116.6°F48 (Abel-Pensky)
Vapor Pressure (at 20°C)2hPaDerived
Initial Boiling Point325.4°FDerived
Melting Pointmax.14°FDerived
pH Value (at 20°C, 1% Concentration)7-Universal pH-Value Indicator
OdorSlight--
Immiscible inWater--
ColorColorless - Light Yellow--
AppearanceLiquid--
Note

The additive contains fluoro-modified silicone.

Storage & Handling

Storage Information

Clouding may occur. If necessary, heat up whilst stirring and until the product becomes clear again.