GM WA549F, Blackberry Pearlcoat. Paint Code WA549F, Blackberry Pearlcoat for GM. WA549F, Blackberry Pearlcoat for GM 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.