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Want satin finish for cast aluminum

November 24, 2009

We are a manufacturer of aluminum parts. I ask this technical question: I have a cast aluminum piece of alloy LM27 (BS standard), and need an external satin finish.

Could we anodize a cast aluminum alloy with high silicon content (6 to 8% Si)?
The satin finish could be doing a mechanical polishing?
Any suggestion would be appreciated.

Roberto Cardenas
Manufacturer - Lima, Peru

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