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 globally supplies additives in the Paint and Coatings Industry. These additives include nanotechnology-based additives, surface additives, wetting and dispersing additives, and rheology additives. BYK’s product range also includes wax and process additives, defoamers and UV absorbers, and viscosity depressants. BYK’s key brands include ANTI-TERRA®, AQUACER®, BYK®, CERACOL®, DISPERBYK®, OPTIGEL®, etc.
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