BYK-W 996 is a wetting and dispersing additive for filled unsaturated polyester systems and epoxy systems.

Chemical Family: Chemical Mixtures & Blends

Compatible Polymers & Resins: Epoxies (EP), Polyesters

Processing Methods: Pultrusion

Enhanced TDS

Identification & Functionality

Features & Benefits

CASE Ingredients Features

Applications & Uses

Application Area
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Adhesive & Sealant End Applications
Composites Processing Methods
Use Level
0.5 - 2% (Resin for Stabilizing the Viscosity in BMC), 1 - 2% (Adhesives and Sealants), 1 - 2% (Wetting and Dispersion)
Application Information

SMC, BMC, Pultrusion
Special Features and Benefits

Universal and cost-effective wetting and dispersing additive for virtually all closed mold applications. Very effective in highly ATH-filled systems. The product can be combined with BYK-W 9010 (1:1) if high additive quantities are required.

Recommended Levels
1-2% additive (as supplied) based upon fillers for wetting and dispersion.
0.5-2% additive (as supplied) based upon the resin for stabilizing the viscosity in BMC.
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
Incorporation and Processing Instructions
BYK-W 996 should be added to the resin mixture prior to homogenization and the addition of the fillers.

 

Adhesives & Sealants
Special Features and Benefits

Universal and cost-effective wetting and dispersing additive for adhesive and sealant applications. Very effective in highly ATH-filled systems. The additive improves the wetting and dispersion of mineral fillers. This achieves a lower viscosity and enables higher filler loading.The product can be combined with BYK-W 9010 (1:1) if high additive quantities are required.
Recommended Use
The additive is particularly recommended for adhesives based on epoxy resins.
Recommended Levels
1-2% additive (as supplied) based on the filler.
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
Incorporation and Processing Instructions
For optimum performance, the additive should be added before the solids.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Water Content0.1%-
Density (at 20°C)1.04g/ml-
Refractive Index (at 20°C)1.462--
Non-Volatile Matter (10 min, at 150°C)52%-
Acid Value71mg KOH/g-
Flash Pointmin. 40°C-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Kinematic Viscosity (at 40°C)28mm²/s-
Kinematic Viscosity (at 20°C)38mm²/s-
Ignition Temperaturemin. 200.00°CDIN 51794
Completely Miscible inWater
Density (at 20°C)1.035g/cc4 (Oscillating U-tube, at 20°C)
Lower Explosion Limit1.5%V-
Upper Explosion Limit10.3%V
Flash Point40.00°C48 (Abel-Pensky), DIN 51755
Vapor Pressure (at 20°C)4hPaDerived
Initial Boiling Point146.00°CDerived
Melting Pointmax. 0°CDerived
pH Value (at 20°C, 1% Concentration)3.2-DIN 19268 (1% in Water)
OdorEster-like--
ColorLight Brown--
AppearanceLiquid--
Composition Data

Solution of a copolymer with acidic groups

Regulatory & Compliance

Storage & Handling

Storage Conditions

Separation and turbidity may occur. Mix well before use. Warm to 30-40°C and mix well.