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Black Chrome
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Black Oxide
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Black Phosphate
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Chrome and Bright
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High Visibility
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Black oxide or blackening is a conversion coating for ferrous materials, stainless steel, copper and copper based alloys, zinc, powdered metals, and silver solder. It is used to add mild corrosion resistance, for appearance and to minimize light reflection.To achieve maximum corrosion resistance the black oxide must be impregnated with oil or wax.One of its advantages over other coatings is its minimal buildup.
While good, black phosphate finished tools offer a higher degree of protection.
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Phosphate coatings are used on steel parts for corrosion resistance, lubricity, or as a foundation for subsequent coatings or painting.It serves as a conversion coating in which a dilute solution of phosphoric acid and phosphate salts is applied via spraying or immersion and chemically reacts with the surface of the part being coated to form a layer of insoluble, crystalline phosphates. Phosphate conversion coatings can also be used on aluminium, zinc, cadmium, silver and tin.
Overall, Black Phosphate coatings last longer than Black Oxide coatings.
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Natural
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Polished
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