U-Pol System 20 4:1 High Build Primer NR - Gray UP2253

Multipurpose primer offering the functionality of products in 1. Mix 4:1 for a primer filler, 4:1:1 for a primer surfacer or 4:1:2 for a primer sealer. Use for spot repair and large panels Excellent build and surface leveling properties Easy to sand wet or dry Can be applied direct to metal, over most plastics and over unsanded E-coat, aluminum* and galvanized* Tintable with up to 10% with urethane mixing base 2.1 VOC Compliant when used with 2.1 VOC hardeners *Requires an acid etch primer, like ACID#8 Substrates: Bare metal, prepared aluminum and galvanized, GRP, SMC, fiberglass, polyester filler, OEM surfaces, E-coat