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Birchwood Technologies Metal Finishing Products

Zinc Black ZN4 Immersion


Solution for blackening zinc die casting and zinc plating

A non-chrome alternative to Black chromate. Utilizing non-regulated molybdate chemistry, ZN4 forms a hard Black finish on Zinc die-castings and Zinc-plated surfaces. Can be highlighted for a simulated Pewter finish or sealed with a clear topcoat for a solid Black finish. Use at 20% by volume at 120 degrees for best results.

For zinc die castings, zinc plating.