| abstract |
The present invention includes applying a primer coating, a base coating, and a clear coat layer in a wet-on-wet-on-wet manner, and simultaneously curing the applied three layers together in a single baking step. The present invention relates to a method for forming a multilayer coating. The primer layer comprises a film-forming binder, (a) a caprolactone-modified linear acrylic polymer, and (b) an aminoplast resin crosslinking agent, wherein the composition comprises crosslinked non-aqueous dispersion resin particles or crosslinked microgel resin. Essentially free of particles or both. The resulting multilayer coating film has excellent aesthetic appearance, strike-in resistance, chipping resistance, sag resistance, and film coating thickness even when formed by three wet layer application methods. |