Chrysler PQK, Aqua Pearlcoat. Paint Code PQK, Aqua Pearlcoat for Chrysler. PQK, Aqua Pearlcoat for Chrysler is formulated using R&E Low VOC Urethane Basecoat paint. The R&E Low VOC Urethane Basecoat paint exhibits exceptional color accuracy and excellent coverage and is specifically designed for all Automotive Refinish Applications.