Enhanced TDS
Identification & Functionality
- Chemical Name
- Manufactured By
- CASE Ingredients Functions
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
Applications & Uses
- Application Area
- Compatible Polymers & Resins
- Adhesive & Sealant End Applications
- Use Level
- 0.5 - 1% (Adhesives and Sealants), 0.5 - 1.5% (UP Putty Compounds), 0.5 - 2% (Acrylate Systems), 0.5 - 2% (Epoxysystems), 0.5 - 2% (PUR Systems)
- Application Information
Thermosets
Special features and benefits
BYK-W 969 is a monofunctional, deflocculating wetting and dispersing additive for mineral-filled, amine-preaccelerated polyester putty compounds as well as epoxy, acrylic, and polyurethane resins. It improves the wetting and dispersing speed of fillers during dispersion and reduces viscosity to enable an increased filler content to be achieved. The higher filler content improves sandability in applied and cured polyester putty compounds. The additive leads to a considerably increase in gelling time in cobalt- accelerated unsaturated polyester resins. It is suitable for all filled PUR systems. Due to its OH functionality, BYK-W 969 is incorporated in the polymer matrix and is therefore suitable for PUR systems in which
fogging and emissions are critical (e.g., automotive applications).Recommended levels
Amount of additive (as supplied) based upon the filler:
UP putty compounds: 0.5-1.5%
PUR systems: 0.5-2%
Epoxy systems: 0.5-2%
Acrylate systems: 0.5-2%
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.Adhesives and sealants
Special features and benefits
BYK-W 969 is a monofunctional, deflocculating wetting and dispersing additive. It is particularly recommended for all filled PUR systems. Due to its OH functionality, this additive is incorporated into the polymer matrix and is therefore suitable for systems in which fogging and emissions are critical (e.g. automotive applications). BYK-W 969 is a wetting and dispersing additive for mineral-filled polyurethane and epoxy adhesives. It improves the wetting and dispersing speed of fillers during dispersion and reduces the viscosity to enable an increased filler content to be achieved.
Recommended levels
0.5-1% additive (as supplied) based upon 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
- Physical Form
- Typical Properties
Value Units Test Method / Conditions Density (at 20°C) 1.09 g/ml - Refractive Index (at 20°C) 1.52 - - Acid Value 30.0 mg KOH/g - Amine Value 30 mg KOH/g - Active Substance 40 % - Hydroxyl Group Value ca. 265 mg KOH/g Flash Point min. 100 °C - - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Auto Ignition Tempertaure min. 200 °C DIN 51794 Flash Point min. 100.00 °C Pensky-Martens Initial Boiling Point 244 °C Derived Melting Point max. 0 °C Derived Density (at 20°C) 1.09 g/cm³ Oscillating U-tube Vapour Pressure (at 20°C) max. 1 hPa Derived Appearance Liquid - - Color Light brown - - Flammability (liquids) Sustains Combustion - - Miscible in Water - - Odor Characteristic - - pH (at 20°C, Concentration: 10%) 7.0 Universal pH-Value Indicator - Composition Data
Solution of a hydroxy-functional alkylammonium salt of an acidic copolymer
Regulatory & Compliance
- OEM Specifications
Storage & Handling
- Storage Conditions
Separation or turbidity may occur during storage and transportation. Warm to 40-60 °C and mix well. Product efficiency is not influenced.