Water-borne basecoat flash process

摘要

A method for flashing an object painted with a water-borne high-solids automotive paint that substantially reduces the frequency of base-coat pop defects. The method subjects the painted objects to a first set of environmental conditions wherein the air temperature, relative humidity and airflow rate are maintained within certain ranges. The painted objects are maintained in these conditions for a period of time which exceeds an empirically derived minimum value. The peak metal temperature of the painted object is then raised to a second temperature range while being subjected to a second relative humidity level and second airflow rate so as to dehydrate the paint film to a predetermined level.