Black oxide-Zinc-Custom Design Circuit Board Electronic Pcb​

- Jan 09, 2017-

Black oxide-Zinc-Custom Design Circuit

Board Electronic Pcb

Black oxide

Black oxide or blackening is a conversion coating for ferrous materials, stainless steel, copper and copper based alloys, zincpowdered metals, and silver solder. It is used to add mild corrosion resistance, for appearance and to minimize light reflection. To achieve maximal corrosion resistance the black oxide must be impregnated with oil or wax. One of its advantages over other coatings is its minimal buildup.


Black oxide for zinc is also known by the trade name Ebonol Z. Another product is Ultra-Blak 460, which blackens zinc-plated and galvanized surfaces without using any chrome and zinc die-casts.

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