Description: U-POLĀ® SYSTEM 20 UP2251 National Rule High Build Primer, 1 L Tin, Gray, 4:1 Mixing FeaturesUse for spot repair and large panelsExcellent build and surface leveling propertiesEasy to sand wet or dryCan be applied direct to metal, over most plastics and over unsanded E-coat, aluminum and galvanizedTintable with up to 10% with urethane mixing base Product DescriptionS2025 High Build Primer is a high solids 2K urethane coating that offers a unique versatile "3 products in 1" functionality. Specially formulated to give the refinisher maximum flexibility, it is ideal for the ever varying shop conditions. Standard/ApprovalsCalifornia Pro65 Warning: Cancer | GHS and OSHA Hazard