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Thread: Powder Coating

  1. #1

    Powder Coating

    So now i have cleared up if my cases are good to use still! im curious about powder coating them and some other parts on my ski. Does anyone know of any places in san diego that do a good job.

    any pics of parts people have had powder coated?


  2. #2
    steach's Avatar
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    Assemble and leak test the engine. Spray with rattle can paint and run it. A pretty engine that doesn't run is still worth shit.

    old 787 pic
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  3. #3
    retro jet's Avatar
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    I agree with Steach, but I'm going to chromate and use a good primer under the rattle can.

    I think you are better off with wet paint, not powder. Corrosion gets started at scratches or thin edges and it comes off in sheets, or as in my Polaris 900, it just comes off. Search here under "engine paint" with durable spelled wrong.

    This seems to be the best recipe for avoiding corrosion with aluminum. I have done a lot of research, but I'm hardly an expert though and welcome any suggestions. I would also add that I have never seen powder coat recommended in mission critical applications.

    1) Sand blast and file down all sharp edges to a radius.
    2) clean with alkaline cleaner/ degreaser. Rinse with water.
    3) acid etch, (part A, google alodine or send parts out for chromate conversion) Rinse with water.
    4) chromate conversion, (part B alodine) rinse with water.
    5) apply Aluminum primer IE zinc chromate or epoxy primer.
    6) apply quality 2 part urethane paint.
    7) rinse engine after use, then spray with favorite lubricant IE doo lube, silicone, WD-40, Boe-Shield, ETC.

    2nd best if you don't have it clear chromated.
    1) Sand blast and file down all sharp edges to a radius.
    2) clean sand blasted aluminum with alkaline cleaner/ degreaser. Rinse with water
    3) rattle can zinc chromate primer from auto parts or boat shop.
    4) rattle can paint
    5) wire brush corrosion bubbles and repaint as needed.
    6) rinse engine after use, then spray with favorite lubricant IE doo lube, silicone, WD-40, Boe-Shield, ETC.

    suggested reading.
    http://www.ronjoseph.com/painting-aluminum.htm
    http://www.finishing.com/157/33.shtml
    http://www.finishing.com/245/16.shtml

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