| abstract |
The present invention relates to a water-based primer material, comprising: at least one water-based polyurethane-polyurea dispersion (PD), which comprises an average size of 40-2000 nm and a gel fraction of at least 50 contained in the dispersion. % of polyurethane-polyurea particles, and at least one aqueous dispersion (wD) comprising three different mixtures (A), (B) and (C) by sequential free radical emulsion polymerization of ethylenically unsaturated monomers prepared polymer. The present invention also relates to a multicoat paint system prepared using the basecoat material. |