Brownells Zinc Parkerizing Pre-Dip Blackener

Produces a dark black color that retains the crystal sparkle common to zinc parkerized finishes. Replaces the hot water rinse as part of the normal zinc parkerizing process. Requires no heating or expensive tank setup, just dip parts in Pre-Dip 15 seconds before placing them into the parkerizing bath. Easy-to-mix and use, concentrated solution saves you money; can be stored and reused. Mix with Hydrochloric Acid and water. Mfg: Brownells SPECS: Plastic bottle, 1 quart (.95 L). Includes instructions.