Re: Anodizing Aluminum Castings?
Hard anodizing of Aluminium alloy with a high silicone content will end in tears, it cannot be coloured properly.
You need an extrusion alloy like 6061 or 6063. But casting either of these alloys is very difficult due to hot tears, you can make a rough shape then do alot of machining and it might work out.
If you have an as cast piece it will probably he high silicon which will mean a no good anodizing
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