BYK-1818 is a PFAS-free, silicone-containing defoamer for solvent-borne and solvent-free coating systems.

Chemical Family: Polysiloxanes

Labeling Claims: Hazardous Air Pollutants (HAPs)-free, Not Listed In California Proposition 65, Per & Polyfluoroalkyl Substances (PFAS)-free

Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Markets
Applications
Application Area
Compatible Substrates & Surfaces
Coating End Applications
Use Level
0.1 - 1% (Coatings Industry)
Application Information

Coatings industry
Special features and benefits

BYK-1818 is a highly effective defoamer for solvent-borne and solvent-free coating systems. Even at low dosing levels, optimal and spontaneous defoaming can be achieved.

Recommended levels
0.1–1% additive (as supplied) based on the total formulation.
The above recommended levels can be used for orientation. The optimum dosage should be determined by application-related test series.
Incorporation and processing instructions
To achieve optimal defoaming, the defoamer should be added to the millbase. If it is incorporated later, sufficient shear forces must be applied to ensure a good defoamer distribution and to prevent crater formation.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)0.88g/ml-
Non-Volatile Matter (10 min, at 150°C)1%-
Flash Point26.0°C-
SolventButylacetate--
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Dynamic Viscosity (at 20°C)1mPa.sP/K 20°C
Ignition Temperature (at 1013 hPa)min. 200°CDIN 51794
Density (at 20°C)0.883g/cc4 (Oscillating U-tube, at 20°C)
Flash Point (at 1013 hPa)26°C48 (Abel-Pensky), DIN 51755
Vapor Pressure (at 20°C)11.6hPaDerived
Boiling Point (at 1013 hPa)126°CDerived
Immiscible inWater--
Melting Point (at 1013 hPa)-90°CDerived
pH Value (at 20°C, 1% Concentration)7.2--
OdorSolvent-like--
ColorClear, Colorless--
AppearanceLiquid--
Composition

Solution of polysiloxanes

Regulatory & Compliance

Chemical Inventories
OEM Specifications