Caswell Black Oxide Kit - 1.25 Gal Blackens Steel & Iron Parts Quickly & Easily (not stainless steel) Room Temperature - No dangerous fumes Contains 1 Pint Of Blackening Concentrate (Makes 1.25 gallons) And 2 Quarts of Sealer (Oily Finish) Covers approx 75 sq feet Works in 3 minutes or less