Mazda 5U, White Pearl Mica, Tri-Coat. Paint Code 5U, White Pearl Mica, Tri-Coat for Mazda. 5U, White Pearl Mica, Tri-Coat 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.