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Cheap way to apply Al coating on Al

I'm looking for a cheap way to apply Al metallic coating on Al substrate(at the lowest temperature possible to avoid any substrate modification). The objective is to get a different alloy (or pure Al) at the surface of an other Al-alloy (for mechanical properties). As a comparison, we find the flame spray too expensive!

Thanks,

Eric Baril
- Quebec, Canada
2002

You could have aluminum electroplated onto aluminum by Alumiplate; or sputtered onto aluminum by an Ivadizing shop. But it sounds like the only thing that may meet your price point is aluminum foil and double-sided tape :-)

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2002

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