BYK-081

1 of 143 products in this brand
BYK-081 is a fluorine-free defoamer designed for solvent-borne and amine-neutralized systems. It is particularly effective in solventborne coatings, including can and wood coatings, and is compatible with alkyd resins. This emulsion-based defoamer ensures excellent foam control while maintaining high performance in various coating applications. It is suitable for use on wood substrates and offers the benefit of being fluorine-free, aligning with environmental and safety standards.

Functions: Defoamer

Chemical Family: Polysiloxanes

End Uses: Can Coating, Solventborne Coating, Wood Coating

Compatible Polymers & Resins: Alkyds

Labeling Claims: Fluorine-free

Technical Data SheetSafety Data Sheet
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Enhanced TDS

Identification & Functionality

Chemical Family
Polysiloxanes
Manufactured By
BYK-Chemie
CASE Ingredients Functions
Defoamer
Technologies
CASE
Product Families
CASE — Additives
Foam Control

Features & Benefits

Labeling Claims
Fluorine-free

Applications & Uses

Markets
Paints & Coatings
Applications
Paints & Coatings — Building & Construction
Architectural Coatings,
Wood Coatings & Finishes
Paints & Coatings — Industrial Coatings
Furniture Coatings,
Industrial Coatings
Paints & Coatings — Packaging Coatings
Can Coatings
Compatible Polymers & Resins
Alkyds
Compatible Substrates & Surfaces
Wood
Coating End Applications
Can Coating,
Solventborne Coating,
Wood Coating
Use Level
0.05 - 1.0%
Product Application

Coatings Industry
Special Features and Benefits
BYK-081 is a highly effective and spontaneous defoamer. It can be used in amine-neutralized, water reducible coating systems and in solvent-borne coatings. It is particularly suitable for high solid alkyd systems in the architectural coatings sector. The additive shows good compatibility with clear coatings. BYK-081 is not suitable for aqueous systems that contain little or no organic solvent as co-solvent.


Recommended Levels
0.05-1.0% additive (as supplied) based upon the 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 at any time during paint production with moderate shear forces. BYK-081 can also be incorporated later. It must be ensured that sufficiently high shear forces are used to distribute the additive homogeneously and to prevent cratering.

Properties

Physical Form
Dispersion,
Emulsion
Typical Properties
ValueUnitsTest Method / Conditions
Flash Pointmin. 100°C-
SolventsPropylene glycol--
Non Volatile Mattermin. 90%-
Density (at 20°C)1.06g/ml-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
AppearanceDispersion--
ColorWhite, cloudy--
Density (at 20°C)1059g/cc4 Deaerated (20°C oscillating U-tube)
Dynamic Viscosity (at 20°C)2624mPa.sP/K 20°C
Flash Pointmin. 100°C49 (Pensky-Martens)
Ignition Temperaturemin. 200°CM0062, Analytics Wesel
Immiscible inWater--
Initial Boiling Pointmin. 100°CDerived
Melting Pointmax. 0°CDerived
OdorCharacteristic--
pH Value (Concentration - 1 % 20°C)7--
Vapor Pressure (at 20°C)max. 1000hPaDerived
Watermin. 200°C-
Note

BYK-081 must not be pre-diluted.

Regulatory & Compliance

Certifications & Compliance
Clean Water Act (CWA) Certified,
Comprehensive Environmental Response, Compensations & Liability Act (CERCLA)
Chemical Inventories
TSCA (USA)

Storage & Handling

Storage Information

Separation or turbidity may occur when stored and transported below 5 °C. The separation and haziness can be eliminated by warming to 20 °C and mixing well.