Byk® -W 969

Technical Documents

Solution of a hydroxy-functional alkylammonium salt of an acidic copolymer. Acts as monofunctional, deflocculating wetting and dispersing agents.

Details

Product Type

Additive > Wetting agents / Wet edge enhancers
Additive > Dispersing agents
Additive > Crosslinking coupling curing agents
Additive > Rheology modifiers thickeners

Recommended for

Polymer > Acrylics & Acrylic Copolymers
Resin > Epoxies
Resin > Polyurethanes > Polyurethane dispersions

Applications

Adhesives

Industry

Automotive

Producer

Byk

Supplier

Tavan

Chemical Composition

Solution of a hydroxy-functional alkylammonium salt of an acidic copolymer

Advantages
  • It wets the filler particles and lead to a moderate interaction of the particles.
  • This additive can be crosslinked into the polymer matrix because of its OH functionality.
  • It improves the wetting and dispersing rate of fillers during dispersion and dramatically reduces viscosity, so that higher filler loading is possible.
Other Applications

Byk® -W 969 is recommended for PUR adhesives
suitable for acrylic, epoxy adhesives.
Used for systems where fogging and emissions are critical issues (e. g. automotive applications).

Technical data

Quantity Value Unit Comment
Appearance Properties
Refractive index 1.52
Physical Properties
Density 1.09 g/ml 20°C
Thermal Properties
flash point >100 ºC
Chemical Properties
Acidity number 30 mg KOH/g
Non-volatile materials 40 % wt
Amin number 30 mg KOH/g
Hydroxyl number 265 mg KOH/g