Kia H4R, Hichroma Red, Tri-Coat. Paint Code H4R, Hichroma Red, Tri-Coat for KIA. H4R, Hichroma Red, Tri-Coat for KIA 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.