Can be reduced 10-25% with High Teck 1070 Low VOC Reducer to maintain 2.1 VOC. It is formulated for adhesion and corrosion resistance on properly prepared steel, aluminum, and OEM finishes. A: High Teck 7502-4 can be reduced 10-25% with High Teck 1070 Low VOC Reducer to maintain 2.1 VOC.