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Thread: anodising

  1. #1
    Join Date
    Jan 2013
    Posts
    20

    Default anodising

    Does anyone know why 4043 filler rod turns black when anodised?
    What causes it and is there a way to get around it without changing rod?

  2. #2
    Join Date
    Aug 2010
    Location
    Los Angeles
    Posts
    1,163

    Default

    Quote Originally Posted by IanHerbert View Post
    Does anyone know why 4043 filler rod turns black when anodised?
    What causes it and is there a way to get around it without changing rod?
    The silicon in the 4043 turns the weld black. I know of no way to stop it. That is why 5356 is recommended. It has no silicon.
    Nothing welded, Nothing gained

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  3. #3
    turbo38t Guest

    Default

    Use 5356......it can still have the slightest discoloration but 4043 turns black....
    Quote Originally Posted by IanHerbert View Post
    Does anyone know why 4043 filler rod turns black when anodised?
    What causes it and is there a way to get around it without changing rod?

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