| abstract |
The present invention relates to a method of making a multicoat coating comprising the following steps: i) optionally applying a primer-surfacer coat (I) to the pretreated substrate, ii) curing the primer-surfacer coat (I), iii) applying the basecoat (II) to the cured primer-surfacer coat (I), iv) optionally curing the basecoat (II), v) applying a clearcoat (III) to a cured or uncured basecoat (II), and vi) curing the basecoat and clearcoat if the basecoat is not cured in clearcoat (III) or step iv), Said primer-surfacer coat (I) is obtained by applying a non-aqueous, solvent-based coating material (F) comprising: At least 20% by weight, at least one organic solvent based on the total coating material (F), and also A1) at least one first polyester (A1) having a glass transition temperature of at least 8% by weight, a glass transition temperature of at least 20 ° C and an acid value of 0 to 40 mg KOH / g, based on the total coating material (F), A2) at least 8% by weight based on total coating material (F), at least one second polyester (A2) different from (A1) and having a glass transition temperature of at most 10 ° C, B) at least one crosslinker (B), and C) at least 8% by weight, based on total coating material (F), of at least one filler and / or pigment (C). The invention also relates to a multilayer coating obtainable according to the process and to a substrate coated with said multilayer coating. |