Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Blackening of aluminum
2000
In the metal finishing guide book there is a formula to blacken aluminum made as follows:
ammonium molybdate 2 oz/gal
ammonium chloride 4 oz/gal
boric acid 1 oz/gal
potassium nitrate 1 oz/gal
tem: 180 F
Did anyone ever use that solution? does it work well? What is each product's function in the solution? which one etch the aluminum/ which one produces the black finish?
What about troubleshooting? Where can we get some more information on this solution?
Veronica Dewis- Miami, Florida USA
I tried this formula, didn't work for me!
I Wallace- LA.California
2000
TRY ALUMINUM BLACK FROM ANY GUN /SPORTING GOODS STORE, WORKS GOOD.
DALE ORNDORFF- GRAND ISLAND, New York
2001
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