Patent ID: 7812088

Claim:
An aqueous multicomponent coating material comprising: (I) an aqueous component comprising a mixture product of: (A) at least one secondary aqueous dispersion of at least one (meth)acrylate copolymer containing on average per molecule at least one isocyanate-reactive functional group, (B) at least one primary aqueous dispersion of at least one (meth)acrylate copolymer containing no isocyanate-reactive functional group and having a number average molecular weight Mn of between 100,000 and 3,000,000 Daltons, and (C) at least one pigment and a filler, wherein the weight ratio of (meth)acrylate copolymer (A) to (meth)acrylate copolymer (B) in component (I) is from 10:1 to 1:3; and also (II) a component comprising a crosslinking agent comprising at least one polyisocyanate, wherein the coating has a popping limit greater than 100 μm.