Cast Iron/Forged Steel Finish

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  • Randy R.
    Very Frequent User
    • March 1, 1983
    • 477

    #1

    Cast Iron/Forged Steel Finish

    I have bead blasted many of my suspension and drive train parts. In my opinion, they now appear too bright and unnatural. Other metal castings or forgings that I have observed over the years are darker in color. Does anyone have any tips to darken the color of the bead blasted parts or am I mistaken in my assumption that these parts are too bright? Would a gray phosphate treatment be acceptable?
  • Rob A.
    Expired
    • December 1, 1991
    • 50

    #2
    Re: Cast Iron/Forged Steel Finish

    I had some exhaust manifolds blasted at a shop that specializes in rebuilding heads. They came out looking very original. I had expected them to appear too shiny but they were right on. When I asked them how they came out like that he said it was because he used "old material" when he blasted them. I'm sure he was just trying to save money, but the results were just what I wanted. I think if you expose your parts to outside air they might darken and look more original. When they have the look you want, you could put a satin clear on the to keep them that way.

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    • Tom S.
      Extremely Frequent Poster
      • March 1, 2004
      • 1087

      #3
      Re: Cast Iron/Forged Steel Finish

      I use Cast -Blast or Rust- Oleum metalic finish.I know that this is not approved for judging purposes but I don't want to have to do this every month. In Florida with the humidity things rust over night.Both give a natural finish and look very good.If you are going to have your car judged I geuss the clear is the only answer. I don't know if that would be any more acceptible than the paint though?I think for preservation purposes the cast paint should be allowed.Just my thoughts on the matter.

      Tom

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      • Craig S.
        Extremely Frequent Poster
        • July 1, 1997
        • 2471

        #4
        Re: Cast Iron/Forged Steel Finish

        Randy - I bead blast my cast iron parts all the time, they will "age" and darken and then you can use either prelube 6 to keep them rust free or you can use krylon satin clear very ligthly. Judges may detect the latter, but it would be more durable that having to mess with prelube 6 frequently. Your choice......Craig

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