Wesel, Germany - Additives group BYK Additives & Instruments has developed Disperbyk-2152 - an emission-free, hyperbranched wetting and dispersing additive for solvent-free epoxy systems and other reactive systems.
BYK says that, in order to obtain excellent pigment deflocculation and stabilisation, an additive with highly effective pigment-affinic groups is required. These groups are mostly aminic and able to react with epoxy resins. The ideal solution would be an additive with encapsulated aminic pigment-affinic groups. However, creating such an additive has not been possible using existing technologies.
In 2011, BYK developed Disperbyk -2151, an innovative additive which combines high effectiveness with stability.
Now, BYK has taken it to the next level with Disperbyk -2152 which is a 100 percent additive based on the same active substance. Thus, the mechanism of Disperbyk -2152 is analogous to that of Disperbyk -2151. The additive contains no solvents or volatile components and fulfils the strict requirements of the German AgBB as well as French VOC standards.
Disperbyk -2152 is recommended for use in industrial, wood and furniture, protective, and automotive coatings, as well as for ambient curing systems and adhesives.