Process For The Preparation Of A Clear Coat Layer Of An Automotive OEM Multi-Layer Coating

摘要

A coating process wherein a precoated automotive substrate is OEM clear coated with a two-component polyurethane clear coat composition prepared by static mixing a binder component having a solids content of 42 to 50 wt.-% comprising at least one hydroxyl-functional binder and a volatile organic content of 50 to 58 wt.-% and a polyisocyanate crosslinker component having a solids content comprising a free polyisocyanate solids content consisting of 75 to 100 wt.-% of at least one polyisocyanate of the 1,6-hexane diisocyanate isocyanurate type and of 0 to 25 wt.-% of at least one polyisocyanate of the isophorone diisocyanate isocyanurate type, wherein the sum of the respective wt.-% in each case totals 100 wt.-%.