BYK Additives & Instruments is one of the world’s leading suppliers in the field of additives and measuring instruments. As a globally operating specialty chemicals company, BYK has production sites in Wesel, Kempen, Moosburg and Schkopau (Germany), Deventer and Denekamp (Netherlands), Widnes (UK), Wallingford, Chester, Gonzales, Louisville (USA) and Tongling (China).


ITM04812, ITM04813

Highly branched wetting and dispersing additive for solvent-borne and solvent-free epoxides and other reactive systems.


Coatings Industry

DISPERBYK-2151 is recommended for use in solvent-borne and solvent-free epoxy systems and other reactive systems such as acid-catalyzed systems and two-pack polyurethanes. During the grinding of the pigments and fillers, the polyester side chains of the additive are compressed and the adhesive forces of the aminic group towardthe pigment and filler surface are increased. The pigment-affinic group is then adsorbed onto the pigments and fillers, while the polyester side chains still shield the aminic group from the epoxy resin. This results in a significant reduction in viscosity, also in solvent-free formulations, and no undesirable interactions with the binder; thereby achieving a long-term storage stability. The wetting and deflocculation of solids is outstanding. DISPERBYK-2151 is broadly compatible and has no negative influence on corrosion resistance, yellowing resistance and adhesion to metal.

Recommended Use
  • Industrial coatings
  • Wood and furniture coatings
  • Protective coatings
  • Automotive coatings