BYK-302

1 of 143 products in this brand
BYK-302 is a silicone surface additive suitable for solvent-free, solvent-borne, and aqueous coating systems as well as printing inks. It reduces surface tension moderately, enhances slip, and improves substrate wetting. The additive belongs to the silicone chemical family and is effective in solventless, solventborne, and waterborne coatings.

Chemical Family: Polydimethylsiloxanes, Silicones

Features: Good Antiblocking Properties, Good Leveling, High Gloss, Improved Slip, Improved Substrate Wetting, Surface Tension Reduction

End Uses: Printing Ink, Solventborne Coating, Solventless & High Solids Coating, Waterborne Coating

Technical Data SheetSafety Data Sheet
View All Documents

Enhanced TDS

Identification & Functionality

Chemical Family
Polydimethylsiloxanes,
Silicones
Manufactured By
BYK-Chemie
Industrial Additives Functions
Surface Modifier
Technologies
CASE,
Industrial Additives & Materials
Product Families
CASE — Additives
Surface Modifiers
Industrial Additives & Materials — Processing Aids
Other Processing Additives

Features & Benefits

CASE Ingredients Features
Good Antiblocking Properties,
Good Leveling,
High Gloss,
Improved Slip,
Improved Substrate Wetting,
Surface Tension Reduction

Applications & Uses

Application Area
Thrust Reversers Heat Shileding
Coating End Applications
Solventborne Coating,
Solventless & High Solids Coating,
Waterborne Coating
Ink & Toner End Applications
Printing Ink
Use Level
0.025 - 0.2%
Product Application

Coatings and Printing Inks
Special Features and Benefits
The additive provides a medium reduction of surface tension in the coating systems. It increases slip and improves leveling and gloss. Silicone additives prevent the formation of Bénard cells. BYK-302 also improves substrate wetting and anti-blocking properties.
Recommended Use
BYK-302 is used when solvent-free additives are required or when special solvents for preparation on site are desired. It can be used in all aqueous, solvent-borne, and solvent-free systems.
Recommended Levels
0.025-0.2% 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. Thinning before incorporation may make dosing easier.
Special Note
Unlike so-called silicone oils, this additive is very user-friendly. However, before use, one should determine in test series whether foam is stabilized in certain systems and check the recoatability and crater development.

Properties

Physical Form
Liquid
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)1.04g/ml-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Auto Ignition Tempertauremin. 200°CDIN 51 794/ DIN prEN 14 522
Flash Pointmin. 100°CPensky-Martens Closed Cup
Initial Boiling Point (Decomposition: yes)min. 200°CDerived
Melting Pointmax. 0°CDerived
Density (at 20°C, 1013 hPa)1.035g/cm³Oscillating U-tube
Vapour Pressure (at 20°C)max. 1hPa-
AppearanceLiquid--
ColorLight yellow--
Flammability (liquids)Sustains Combustion--
pH (at 20°C, Concentration: 10%)7-Universal pH-Value Indicator
Soluble inWater--
Composition Data

Polyether-modified polydimethylsiloxane

Regulatory & Compliance

OEM Specifications
Bombardier BAMS552-008