BYK-W 9011

1 of 143 products in this brand
BYK-W 9011 is a wetting and dispersing additive for SMC, BMC, and pultrusion applications. It reduces the viscosity of fillers and pigments in LP and LS systems as well as highly filled epoxy formulations. It is not suitable for cobalt-accelerated systems and is designed for low-emission formulations, offering a cost-effective alternative to BYK-W 9010.

Functions: Dispersant, Wetting Agent

Compatible Polymers & Resins: Epoxies (EP)

Processing Methods: Pultrusion

Technical Data SheetSafety Data Sheet
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Enhanced TDS

Identification & Functionality

Manufactured By
BYK-Chemie
Composite Materials Functions
Dispersant,
Wetting Agent
Technologies
Composite Materials
Product Families
Composite Materials — Additives
Functional Additives

Features & Benefits

Materials Features
Reduces Viscosity

Applications & Uses

Application Area
Thrust Reversers Heat Shileding
Compatible Polymers & Resins
Epoxies (EP)
Composites End Use
Bulk Molding Compounds,
Sheet Molding Compounds
Composites Processing Methods
Pultrusion
Use Level
0.25 - 1% (BMC), 0.5 - 1% (Wetting and Dispersion)
Application Information

SMC, BMC, Pultrusion
Special Features and Benefits 
BYK-W 9011 improves the wetting and dispersion of the most common fillers such as calcium carbonate and ATH (aluminum trihydroxide). The additive reduces viscosity which enables higher filler content. The improved wetting and dispersion of the fillers results in improved homogeneity and also optimizes batch reproducibility. In BMC formulations BYK-W 9011 is recommended for viscosity stabilization.

Recommended Levels
0.5-1% additive (as supplied) based on fillers/pigments for wetting and dispersion.
0.25-1% additive (as supplied) based on the resin in BMC for viscosity stabilization.
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 should be added to the resin mixture prior to homogenization and the addition of the fillers/pigments.

Properties

Physical Form
Molten
Typical Properties
ValueUnitsTest Method / Conditions
Water Content0.13%-
Density (at 20°C)1.11g/ml-
Refractive Index (at 20°C)1.465--
Acid Value65.0mg KOH/g-
Active Substance100%-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Auto Ignition Tempertauremin. 200°CDIN 51794
Flash Pointmin. 150°CPensky-Martens
Initial Boiling Pointmin. 150°CDerived
Melting Pointmax. 5°CDerived
Density (at 20°C, 1013 hPa)1.11g/cm³Oscillating U-tube
Vapour Pressure (at 20°C)max. 1hPaDerived
AppearanceMolten form--
ColorLight yellow--
Flammability (liquids)Sustains Combustion--
Miscible inWater--
pH (at 20°C, Concentration: 10% in water)2.3-DIN 19268
Note

BYK-W 9011 is not recommended for use in ambient curing, cobalt-accelerated resins because the curing process may be inhibited.

Regulatory & Compliance

OEM Specifications
Bombardier BAMS552-008

Storage & Handling

Storage Conditions

Separation or turbidity may occur during storage and transportation. Warm to > 30 °C and mix well.