A two-component urethane primer, designed for exceptionally high build with direct-to-metal properties. 2K Primer is great sanding, wet or dry after short dry times.  Genteel Coatings FS-4100 primer mixes 4:1 with FS-4111 activator. Mixed 4:1:1 FS-4100 Primer can be used as a multiple panel sealer and provides minimal shrinkage and the maximum in color holdout properties.