Stainless Steel Blackener is an acidic liquid concentrate used full strength or diluted with up to 3 parts water to blacken stainless steel at room temperature. This kit is not for steel; use our Black Oxide Kit for steel and iron parts. Recommended for color coding parts and blackening engravings on stainless steels. Produces a pleasing dark gray/black finish. Seal with Caswell Sealer. Caswell Sealer is a clear, water based acrylic sealer that protects and seals the blackened finish. Leaves a hard, clear, glossy finish. Does not add any dimensionality to parts. Kit Contents: 1 Gallon 2 Gallon 3 Gallon 5 Gallon, 1 Quart Stainless Steel Blackener (Makes 1 Gallon) 2 Quarts Caswell Sealer (Makes 1 Gallon) 2 x 1 Gallon Tanks and Lids, 3 Quart Stainless Steel Blackener (Makes 2 Gallons) 4 Quarts Caswell Sealer (Makes 2 Gallons) 2 x 2 Gallon Tanks and Lids, 4 Quarts Stainless Steel Blackener (Makes 3 Gallons) 1.5 Gallons Caswell Sealer (Makes 3 Gallons) 2 x 3.5 Gallon Tanks and Lids, 8 Quarts Stainless Steel Blackener (Makes 5 Gallons) 2.5 Gallons Caswell Sealer (Makes 5 Gallons) 2 x 6 Gallon Tanks and Lids. Contains Hazardous Goods. Shipping restrictions apply. Ground shipping only to the Continental USA. Please call +1 315 946 1213 or contact us for rates to other locations.