Room Temperature 65–85° F

Insta-Blak 333

Samples Available *

A simple energy-saving process that produces a smut-free black finish unlike other blackening processes.

Recommended for blackening cold- and hot-rolled carbon steels, alloy steels, steel castings, cast iron, forged steel, and powdered metal. It will not blacken stainless steels. Can be used on sterling silver.

The Insta-Blak 333 Touch-Up bottle helps improve the appearance of scratches while avoiding the need to re-blacken the entire piece.

Learn More
Documentation
Related Products
E-Kleen SR 148-E

Liquid-emulsifiable alkaline soak cleaner that removes carbon smut from all metals. Effective at low operating temperatures...

E-Prep 258

A universal liquid surface conditioner and activator for steel. Use prior to the application of black oxide and rust patina...

Insta-Blak 333

A simple energy-saving process that produces a smut-free black finish unlike other blackening processes. Recommended for...

Insta-Blak 333 GEL

An instant-acting black chemical conversion finish for all ferrous metals specially created for vertical surfaces. Recommended...

E-Laq 525

A water-resistant, hard (2H–3H pencil hardness), and clear acrylic lacquer finish for coating metal or blackened surfaces. A...

Kool-Blak 225

Kool-Blak 225 is a true blue-black glossy magnetite black oxide finish at 225–255° F. It replaces a hot black oxide finish...

Ultra-Blak 400

A superior high-concentration formula, the Ultra-Blak 400 easily produces an eye-appealing glossy black-blue finish on a wide...

Ultra-Blak 400-L

A superior high-concentration liquid formula based on the infamous Ultra-Blak 400, Ulta-Blak 400-L eliminates the boil-out...

E-Tec 501

A slightly oily solvent and calcium-based lubricant and rust and corrosion inhibitor for ferrous and non-ferrous metals that...

E-Tec 502

A thin and slightly oily solvent and calcium-based lubricant and rust and corrosion inhibitor for ferrous and non-ferrous metals...

E-Tec 503

A dry-touch, glossy solvent and calcium-based lubricant and rust and corrosion inhibitor for ferrous and non-ferrous metals that...

E-Tec 504

A dry-to-touch, hard-film, solvent-based lubricant and rust and corrosion inhibitor for ferrous and non-ferrous metals that...

E-Tec 505

A dry, soft-film solvent-based lubricant and rust and corrosion inhibitor for ferrous and non-ferrous metals that produces 18...

E-Tec 505+

A dry, soft-film solvent-based lubricant and rust and corrosion inhibitor for ferrous and non-ferrous metals that produces 96...

Collapse Information

Hot Temperature 285° F

For Industrial Use

Ultra-Blak 404

An alkaline solution formulated to blacken cast iron, malleable iron, and some mild low-carbon steels.

Used boiling at 250–260° F. Dissolved salts in water at a concentration of 4.75 pounds per gallon.

Ultra-Blak 404 is also available in liquid form, the Ultra-Blak 404-L.

Learn More

There is a small fee for samples shipped in the continental U.S. This can range from $10–$75. Products shipped outside the continental U.S. can be subject to certain restrictions. Freight charges may range from $75–$300.