Mazda J3, Platinum Opal Mica. Paint Code J3, Platinum Opal Mica for Mazda. J3, Platinum Opal Mica for Mazda 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.