compare black anodize vs ecoat for cost and weather resistance
compare black anodize vs ecoat for cost and weather resistance
(OP)
Hi,
We make products that use a frame made of 6061 aluminum extrusions that will exposed to the elements for at least 30 years (the product is guaranteed for 25). The frames are protected using clear anodizing.
Our customers want now want black frames. Any suggestions on the use of black anodizing vs ecoat? Cost is the overriding concern, since we use millions of feet per year of extrusion.
Thanks everyone
ADM
We make products that use a frame made of 6061 aluminum extrusions that will exposed to the elements for at least 30 years (the product is guaranteed for 25). The frames are protected using clear anodizing.
Our customers want now want black frames. Any suggestions on the use of black anodizing vs ecoat? Cost is the overriding concern, since we use millions of feet per year of extrusion.
Thanks everyone
ADM





RE: compare black anodize vs ecoat for cost and weather resistance
Regards,
Cory
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RE: compare black anodize vs ecoat for cost and weather resistance
Thanks for the reply - you make a good point. Our supplier is suggesting something called a "carbon fluorine" coating. Are you familiar with that? Is is still a polymeric coating?
Thanks again for your help.
Dave
RE: compare black anodize vs ecoat for cost and weather resistance
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: compare black anodize vs ecoat for cost and weather resistance
RE: compare black anodize vs ecoat for cost and weather resistance
Your tips and suggestions have been very helpful.
I think the supplier was talking about a Kynar PVDF coating. I did some more research, and it turns out that our requirements are very similar to that of architectural fenestration requirements (exposures, lifetimes etc). It seems that both black anodizing (E6-C35/BS) and Kynar 500 are good products. So I think it will come down to which one costs less.
Any other thoughts?
Thanks again,
Dave
RE: compare black anodize vs ecoat for cost and weather resistance
RE: compare black anodize vs ecoat for cost and weather resistance
For some reason when I started here the 2 terms were used interchangeably. This meant lots of parts with relatively expensive anodize when regular anodize with black die would have been fine.
KENAT, probably the least qualified checker you'll ever meet...
RE: compare black anodize vs ecoat for cost and weather resistance
Interesting you should ask. Seems that both the Aluminum Association and AAMA (American Architectural Manufacturers Association) specify a "class 1" anodizing for exerio architectural use. Class 1 can either be Type II OR Type III, but only Type III is hard-coat. Most architectural anodizing is type II and therefor not hard-coat. The AAMA spec is 611. The AA spec is AA-M10C22A44.
Thats a summary of what I have found. Hope it was helpful.
Thanks
Dave