Multipurpose primer offering the functionality of "3 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. Note: This item is not for sale in California due to state VOC regulations. Orders placed in VOC-restricted states will be cancelled. Includes 1 quart of UP2323 hardener. Features:Use 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 galvanized*Tintable with up to 10% with urethane mixing base *Requires an acid etch primer, like ACID#8 Substrates:Bare metalProperly prepared aluminum and galvanizedGRPSMCFiberglassPolyester fillerOEM surfaces