Newb post – impurities and uneven flow out?

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  • #28753

    I mainly PC aluminum stuff that I make. I’ve been having trouble getting the finished product to be smooth and free of impurities.


    That is an example of what I get all the time. I’ve read that aluminum requires more heat/curing time because of how easily it dissipates heat. The powder calls for 15 minutes at 400.

    I typically…
    Clean the piece with Prep-all to remove any oils/etc
    Preheat the oven to 475 or so.
    Insert piece once oven is up to temp and let it sit for ~10 minutes, then cure at 400 for 20 minutes.

    What am I doing wrong?

    I always get those little piece of trash in the finish, some items more than others (it seems to be sheer luck) and the finish is never 100% smooth. the picture is an accurate representation of the finish I always get, it’s somewhat close to smooth but not quite.

    Do I need more heat, more time, preheat?

    any help is appreciated.

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