Tool-Blackening Kits | McMaster-Carr

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13 Products

Blackener Kits for Ferrous Metal Tools

For use with steel and iron parts, these kits create a flat, black protective finish that resists corrosion and reduces glare. Use as an alternative to purchasing black-oxide tools.

Gel and Thin Liquid—Gel and thin liquid blackeners include blackener, cleaner, and sealer. Dip or swab to apply.

Liquid Concentrate—Liquid concentrate blackeners include blackener, sealer, and mixing pails. Dilute up to 10 times the amount of blackener in each kit—the higher the concentration, the faster the blackening process.

Blackener Kits											Replacement Blackeners
Container Size	Consistency	Solution Type	Approx. Coverage, ft²	Max. Temp., ° F	Application Temp., ° F	For Use On	Includes	Color		Each		Each
1 pt.	Gel	Water Based	20	250	65 to 75	Steel, Iron	One Blackener, One Cleaner, One Sealer	Black	3435K15	0000000	3435K16	000000
1 pt.	Liquid Concentrate	Water Based	40	500	65 to 75	Steel, Iron	1 Pint Blackener, 2 Quarts Sealer, Two 2 Gallon Plastic Pails	Black	3435K31	000000	3435K34	00000
1 pt.	Thin Liquid	Water Based	25 to 35	250	65 to 75	Steel, Iron	One Blackener, One Cleaner, One Sealer	Black	3435K21	000000	3435K53	00000
2 pt.	Liquid Concentrate	Water Based	80	500	65 to 75	Steel, Iron	1 Gallon Sealer, 2 Pints Blackener, Two 3.5 Gallon Plastic Pails	Black	3435K32	000000	3435K34	00000
2 qt.	Liquid Concentrate	Water Based	160	500	65 to 75	Steel, Iron	2 Gallons Sealer, 2 Quarts Blackener, One 3.5 Gallon Plastic Pail, One 6 Gallon Plastic Pail	Black	3435K33	000000	3435K35	00000

Replacements for Blackener Kits

		Each
Replacement Sealer for Gel and Thin Liquid Blackener Kits	3435K96	000000
Replacement Cleaner for Gel and Thin Liquid Blackener Kits	3435K81	00000

Blackener Kits for Nonferrous Metal Tools

For use with aluminum, brass, and copper parts, these kits create a flat, black protective finish that resists corrosion and reduces glare. Use as an alternative to purchasing black-oxide tools. They include a blackener and a sealer. Dip or swab to apply.

Container Size, qt.	Consistency	Solution Type	Approx. Coverage, ft²	Max. Temp., ° F	Application Temp., ° F	For Use On	Includes	Color		Each
1	Thin Liquid	Water Based	30 to 40	250	65 to 75	Aluminum, Brass, Copper	One Blackener, One Sealer	Black	3435K12	0000000

Replacement Blackeners