BYK®-W 969 is a wetting and dispersing additive with viscosity reducing properties in ambient curing resins. It is composed of a hydroxy functional alkylammonium salt of an acidic copolymer. It improves the wetting and dispersing rate of fillers during dispersion and reduces paste viscosity, such that higher filler loading is possible. Increased filler loading dramatically improves the sanding characteristics of putty compounds. BYK-W 969 has a strong effect on gel time in cobalt catalyzed unsaturated polyester formulations.
BYK has an established history of innovation such as being the first additive manufacturer to begin using Controlled Polymerization Technology (CPT), launching the first rheology-modified wax emulsion, and being one of the first companies to use nanotechnology for improving Coatings properties. BYK invests approximately 7.5% of its earnings in R&D—three times more than the industry average.
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