BYK-315 N is a silicone-containing surface additive for solvent-borne coating systems, particularly automotive coatings. It provides a slight reduction in surface tension and a slight increase in surface slip, with no blushing after the water immersion test.

Functions: Gloss Enhancer, Slip Agent, Surface Modifier, Surface Tension Modifier

Chemical Family: Polydimethylsiloxanes

End Uses: Clearcoat, Solventborne Coating

Features: Blush-free, Defoaming, Good Leveling, Improved Slip, Improves Flow, Surface Tension Reduction

Enhanced TDS

Identification & Functionality

Carrier
Chemical Family
Manufactured By
CASE Ingredients Functions
Industrial Additives Functions
Technologies
Product Families

Features & Benefits

Applications & Uses

Markets
Applications
Application Area
Coating End Applications
Use Level
0.05 - 0.6% (Coatings Industry)
Application Information

Coatings Industry
Special Features and Benefits

The additive causes just a slight lowering of the surface tension of coating systems. It therefore improves the flow and leveling and in some formulations also has a defoaming effect. The formation of Bénard cells is also prevented and gloss is increased. The additive displays no blushing in clear coats after water immersion tests.

Recommended Levels
0.05-0.6% 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 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
Solvent (Methoxypropyl Acetate)1--
Solvent (Phenoxy Ethanol)1--
Density (at 20°C)1.03g/ml-
Non-Volatile Matter (30 min, at 150°C)25%-
Flash Point51.0°C-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Ignition Temperaturemin. 200°CDIN 51 794/ DIN prEN 14 522
Density (at 20°C)1.03g/cc4 (Oscillating U-tube, at 20°C)
Flash Point51°C48 (Abel-Pensky)
Vapor Pressure (at 20°C)2hPaDerived
Initial Boiling Point146°CDerived
Immiscible inWater--
Melting Point-5°CDerived
pH Value (at 20°C, 1% Concentration)6-Universal pH Value Indicator
OdorSolvent-like--
ColorLight Brown, Clear - Slight Cloudy--
AppearanceLiquid--
Composition

Solution of a polyester-modified polymethylalkylsiloxane

Regulatory & Compliance

Storage & Handling

Storage Conditions

Separation or turbidity may occur when stored or transported below -5 °C. Heat to 20 °C and stir.