For Industrial Use

E-Prep 255

A surface conditioner and activator used prior to room-temperature black oxide processes for steel.

Eliminates iridescent blue finishes on hard-to-blacken hardened micro-finished tool steel surfaces. Acts as a conditioner by enhancing the depth of black. Temperature: 75–150° F. Concentration: 5–10% by volume in water.

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E-Prep 258

Samples Available *

A universal liquid surface conditioner and activator for steel.

Use prior to the application of black oxide and rust patina finishes for steel, cast iron, and leaded steel surfaces. Features the added advantage of eliminating smut from steels such as bar stock. Temperature: 65–80° F. Concentration: 20% by volume in water.

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Documentation
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For Industrial Use

E-Prep B-3

An easy-to-use black pre-dip that provides a rich black color treatment on steel.

Use in combination with hydrochloric acid prior to a zinc phosphate coating.

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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.