Powdercoating question.
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  1. #1
    Menace To Society limebone's Avatar
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    Powdercoating question.

    Is it possible to powdercoat stainless steel? If so, does there need to be a special treatment for the powder to adhere before the coating?
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    Menace To Society StuckInKansas's Avatar
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    Re: Powdercoating question.

    I don't know from experience, but powder sticks by static, not magnetism. I would say that yes, it would work fine. Anyone else here that can confirm this?


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    Super Moderator dano's Avatar
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    Re: Powdercoating question.

    powder coating is applied with electrical current, the object being painted is charged either positive or negative...and the paint is the opposite charge....so the paint is attracted to the other opposite charge resulting in a even coating as it self levels all around the object it is being applied to. im not sure about the stainless problem but im almost sure that it will coat stainless. maybe a quick sandblast to roughen up the surface to help the paint stick.
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    Noob! s3n8's Avatar
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    Re: Powdercoating question.

    I just shipped a box of silver s3 bits to these guys:

    http://absolutepowdercoating.com/

    I have been emailing with [email protected]

    Shoot him an email, Im sure he can answer your questions. He seems like he knows what he is talking about. He did a bike frame for a friend, and it turned out really well. I will post pics when I get the stuff back.

  6. #5
    The "Friends" of Officer Frank Poncherello Martin_R's Avatar
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    Re: Powdercoating question.

    You can powdercoat anything that will stand the heat of the baking oven where the powder is melted in. Conductive materials are easier, others must be coated with liquid first so the powder has something to stick on to. Some aluminiums are borderline for being tempered brittle in the process, if normal powders are used. Stainless can be roughened up first with blasting, but I don't remember which was the right media. However the media must not have been used on iron before or you will get rusty spots.

    The above is second hand info I got from the coater guy last week, so I can't help with the specifics of it all.

    What parts were you thinking of doing?

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    The "Friends" of Officer Frank Poncherello crashmasterd's Avatar
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    Re: Powdercoating question.

    Anything powdercoats better if you blast it first. OR sand it to rough up the surface. Not so much for the surface quality, but to make the coat stick better. I know a girl who runs a powder shop and they sandblast everything unless they're coating with clear (Rare).

    Otherwise the only thing you need to worry about is if the part is clean and free of grease/oil. Works great!
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    The "Friends" of Officer Frank Poncherello kjazz's Avatar
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    Re: Powdercoating question.

    Would it be crazy to powdercoat a three rail motorcycle trailer?

    My father has offered me his old three rail trailer which is rusted. I figure I'd have it blasted off real good and have it coated. Is that a reasonable alternative to painting it? Or cost prohibitive.

    The largest powdercoating job I've ever done were my old race bike frames.

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    The "Friends" of Officer Frank Poncherello DocPup's Avatar
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    Re: Powdercoating question.

    Father-in-law owns on of the largest powdercoating booths/ovens in VA
    www.vasportbike.com

    Richmond, VA

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  10. #9
    Menace To Society limebone's Avatar
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    Re: Powdercoating question.

    Quote Originally Posted by Martin_R

    What parts were you thinking of doing?
    I'm thinking of doing a stainless exhaust can, keeping the pipe and the end caps stainless and black powdercoat the "can" middle part of it.
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  11. #10
    AA
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    Re: Powdercoating question.

    Quote Originally Posted by kjazz
    Would it be crazy to powdercoat a three rail motorcycle trailer?

    My father has offered me his old three rail trailer which is rusted. I figure I'd have it blasted off real good and have it coated. Is that a reasonable alternative to painting it? Or cost prohibitive.

    The largest powdercoating job I've ever done were my old race bike frames.

    kjazzz
    Why not blast it and have it hot galv dipped?
    Then it will last forever.
    Not as pretty though.

    In my experience the problem with powdercoating is that it cracks if the base material flexes.
    Paint is actually better in the long run for bike frames/car chassis.IMNSHO.

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