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Aluminum Cold Blackening

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  • Aluminum Cold Blackening

    Is 59-60 degrees F to cold to be room temperature? After blackening several aluminum test pieces in various solution strengths and time periods, and then soaking in sealer, I can wash all the black off all the pieces in cold water using my fingers. The pieces have been prepped using sandpaper or steel wool or abrasive blasting (evaluating for the best end result), and no touching with bare hands, so contamination should be at a minimum.

  • #2
    You need to clean the parts prior to dipping them in the solution. Use a good degreaser like Dawn Dish Soap or Soft Scrub. Then rinse with distilled water. 68-72 Degrees is a much better working temp then 60.
    Jason Vanderbroek
    315 946 1213 x116