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topic 7248

Patination ART on Aluminium


(2001)

Q. I'm looking for (books) procedures to patina (patination) aluminium. Basically for outdoor resistance 100% of the time (UV and waterproof) for sculptures. The patina on the aluminium must keep its finish but it could be reasonable to apply a coat of wax or clear Teflon or whatever 1 time per year. I find a book for patinas on bronze, copper or stainless but nothing about aluminium.

Andre C [last name deleted for privacy by Editor]
- Riverdale, North Dakota USA


Artists Anodizing Aluminum: The Sulfuric Acid Process

(2001)

A. Hi Andre. Aluminum can be anodized, dyed, and sealed. It should exhibit extraordinary outdoor resistance as entire skyscrapers are built with anodized aluminum.

But whether this offers you the option for the art you envision is a question I can't answer.

Good luck.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey


(2003)

A. You can colour aluminum directly, without anodizing!

Black for aluminum:
10 gm potassium permanganate
25 gm copper nitrate
4 cc nitric acid
1 lit water

Hot immersion / 80-100 °C)
5 min. = brown
15 min. = dark brown
30 min. = black

Budija Goran
- Zagreb, Croatia


June 2, 2009

Q. Could anybody tell me if there is a coating one can apply to stop brushed aluminium anodising outside and keep up it's sheen.

Thanks

Claire Richmond
- Tasmania, Australia


A. Hi Claire. Aluminum can be clearcoated; lots of people polish their aluminum car wheels then clearcoat them. Also, the right alloys of aluminum can be anodized without losing substantial shine -- most dentists' lights and outdoor lighting reflectors, and many telescope mirrors are anodized aluminum.

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"


June 4, 2015

A. Wattyl has a product called Aluclear.

Aaron Anderson
realaustralianworks.com - Melbourne Australia



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