German technical background VOK®-350D rheological additive

Main component: polyether polyol

Main performance: providing efficient high shear viscosity, good flow and leveling, improving film fullness and clarity, and good color development.

VOK®-350D is a 50% nonvolatile, non-ionic association polyether polyol rheological additive without AP EO, VOC and organic tin. Compared with the traditional polyether polyurethane Newtonian rheological additive, it will have more advantages in improving flow levelness, film fullness and high gloss system. At the same time, with the help of efficient flow leveling behavior, the film defects such as brush marks, orange peel and thick edges that may occur in the coating film can be avoided, so as to improve the coating quality on the surface of wood products.

VOK®-350D can provide high shear viscosity and relatively low shear viscosity, showing more Newtonian rheological behavior.

VOK®-299 and VOK®-350D The combination of can adjust the thickening rheological properties of the system, improve the high shear viscosity, reduce the low shear viscosity, and improve the rheological behavior of flow leveling.. According to the requirements of different formulation systems and different construction applications for rheological properties, the balance requirements for thickening, sagging resistance, spray atomization, brushing and flow, leveling and fullness can be met by adjusting the proportion of the two additives.

Application field:

Architectural latex coating: engineering drawings/high PVC coating, medium/low PVC interior and exterior wall coating, low odor/low VOC coating.

Waterborne wood coatings