Afcona -4015

Afcona -4015 by Afcona Additives is a modified polyurethane polymer that acts as a dispersant mainly for co-grinding. Contains strong acid and amine functional groups in order to give good cogrinding effect. Due to the strong acid and amine functional groups, it will only function very well in high polar systems like polyurethane, epoxy, NC and acid curing. In medium to low polar systems like baking paints, 3-5% of high polar solvents like ketonic solvent (MEK, MIBK) are needed to improve the solubility of Afcona -4015 in the system. The viscosity reduction property of high polar dispersants is always not too strong. Therefore, mill bases based on AFCONA-4015 are more thixotropic and higher in viscosity. After the let down this effect is hardly noticeable. Addition and dosage: Calculation method for the required amount of AFCONA-4015 on pigment: TiO2 : 6-8%, Other inorganic pigments : 5 -10%, Organic pigments : 20-40%, Carbon blacks : 30- 60%.