Summary for anodizing aluminium stainless steel color Discussion
Anodizing aluminium to a stainless steel color is possible, but the thread suggests the result depends on the dye system and process used. Axel Bree asked about getting grey or stainless-steel-like finishes instead of the usual silver, brass, bronze, or natural look. James Watts said large dye companies such as Novamax and Clariant can mix dyes to produce nearly any shade. David A. Kraft added that his job shops achieve grey and stainless steel colors and recommended Clariant Corp or US Specialty for dyes. Sanjay A. Bulchandani pointed Axel to Italtecno in Modena, Italy, which offers a process for blue, green, and grey and requires a special power supply sold with the system. A later question about thermal factor C was separate and not answered in the excerpt.
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Q. We want to anodize aluminium in other colors than silver, brass, bronze or natural colored. We are looking for finishes like grey or stainless-steel.
Any advice would be appreciated
Axel Bree
1998
A. The larger dye companies such as Novamax and Clariant make nearly any color that you can imagine. They mix dye colors to provide virtually any shade of the rainbow.
James Watts
– Navarre, Florida
A. We run two large job shop anodize plants here & do both grey & stainless steel colors. If you are looking to purchase dyes I suggest you try Clariant Corp or US Specialty.
David A. Kraft
– Long Island City, New York
A. Axel – Try Italtecno in Modena, Italy. They have a process that will give you blue, green and grey. You need a special power supply that they will sell. I visited their plant last year and the colors looked good.
Regards,
Sanjay A. Bulchandani
– Bombay, India
RECOMMENDED ANODIZING & CHROMATING BOOKS
for Shops, Specifiers & Engineers
“The Surface Treatment & Finishing of Aluminium and Its Alloys” by Wernick, Pinner & Sheasby (1959 – 2001)
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eBay,
AbeBooks, or
Amazon
“The Metallurgy of Anodizing Aluminum” by Jude Mary Runge (2018)
avail from
eBay,
AbeBooks, or
Amazon
“Surface Treatment and Finishing of Aluminum” by Robert King (1988)
avail from
eBay,
AbeBooks, or
Amazon
“Anodic Oxidation of Aluminum and Its Alloys” by V. F. Henley (1982)
avail from
eBay,
AbeBooks, or
Amazon
“Aluminum Finishes Process Manual” by Reynolds Aluminum (1973)
avail from
eBay or
Amazon
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I am studying Design technology for one of my a-levels. For my project I am considering anodizing aluminium. Any information about the process/cost or any other information would be useful. I want to use colors as opposed to natural metal metal finishes. Please help if you can!
Louise kerr–
– England
2000
Louise, nearly any of the metal finishing
“must-have” books will have a chapter on anodizing, which is probably a good enough start for a student. But if you need a whole book on anodizing, here is a list of some ⇨
Ted Mooney, P.E.
Striving to live Aloha
finishing.com – Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
2000
Q. My question is:
When you do a surface-treatment on aluminium with anodically oxidizes, the factor C (kcal/m^2.h.K^4) will be 1.8 to 4.3. The question is now, how is that possible or it will depend on the process?
Schaeffer
– Hengelo, Netherlands
2000