Primer is perfect for small shops and DIY car enthusiasts Easy-to-sand Excellent resistance to sand scratch swelling Simplified mix ratios Finish 1 is a value product line offering surface cleaners, undercoats, factory package acrylic enamels and clearcoats Part number: FP410-4 Finish 1 2K HS primer is a premium 2-component primer surfacer designed for high build and excellent filling of repairs. It provides excellent adhesion and gloss /color holdout. FP410 sands easily without clogging the sandpaper, while providing excellent resistance to sand scratch swelling.Features:Value pricedSimplified mix ratiosGray scale sealers for various topcoat colorsDirect-to-metal and urethane high-buildEasy-to-sandExcellent resistance to sand scratch swellingExcellent topcoat gloss hold outIncludes:(1) Quart FP410 Primer(1) Half Pint FH41118 Hardener