Gallon of Premium High Solids High-Build 2K Primer Urethane Surfacer - Gray. Mixes with urethane hardener in a 4:1 Ratio. (Hardener not included) This professional high-build urethane primer surfacer and sealer has superior filling capabilities because of its high solids content, making it excellent for filling medium to deep sand scratches. This DTM4200 direct-to-metal primer provides excellent color holdout under all urethane finishes with no shrinkage. It is fast drying, and sands easily wet or dry without loading the paper. It can be tinted with primer tints, or base coat toner. A direct-to-metal primer that provides excellent adhesion when it is applied over properly prepared bare metal, previously painted surfaces, body filler, and most properly prepared automotive plastics. Restoration Shop's premium-quality coating products are formulated and manufactured in the USA and distributed throughout the USA. Our superior coating products only use the highest-quality ingredients, which allows our customers to achieve consistent, high-quality professional results on all their painting projects