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Thread: Zirconium oxide paint?

  1. #1

    Zirconium oxide paint?

    Was told today that this paint can be used to protect crucibles from high temp casting.

    http://www.aremco.com/news-item/pyro...heating-coils/

    Any experience with this?

    It's to help protect the crucibles for my 17-4 stainless steel casting project: http://www.alloyavenue.com/vb/showth...tainless-steel

  2. #2
    it looks like it would, expecially since your melting the metal on the crucible rather than in it, so your not heating the whole crucible up to that same temp. I would have thought the crucible would have melted before that stuff would in a standard enviroment where the crucible is heated to melt the metal, but like I said, your melting it on it rather than in it.

    I looked in my book and zirconium oxide melts at 4825F(2663C) for standard ZrO2, and the stabalized, it's 4500F(2482C), so the coating should easily handle the melting temps of your stainless. The only thing I can think of is that the arc itself is much hotter and if you touch the coating, it may melt or sinter itself onto the crucible, but I dont think that is really a problem for you.

  3. #3
    Gonna give it a shot, I tried to "season" the crucible with Borax like they do with silver and gold but it just seemed to leach out.

    Will report back when I get ready to do this again.

  4. #4
    Senior Member Robert's Avatar
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    How much is that stuff and where can you buy it?
    R
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  6. #6
    Senior Member OCD's Avatar
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    ITC-100 is cheaper than that and proven.

  7. #7
    Senior Member Robert's Avatar
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    I was hoping it would be cheaper. At that price you can do the research and let us know!
    Robert
    "Whether you think that you can, or that you can't, you are usually right."
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  8. #8
    There's cheaper options if you look around:

    https://www.mtixtl.com/cart.aspx
    Last edited by Drkailey; 08-24-2017 at 05:47 PM.

  9. #9
    Quote Originally Posted by OCD View Post
    ITC-100 is cheaper than that and proven.
    OK, I found it.

    https://www.itccoatings.com/our-products/

    Sounds like they want ITC 100 to be applied 1/16" to 1/8" thick?

    http://www.ceramaterials.com/images/...stallation.pdf

    Think a thin coat would work on my small crucibles?


    ps: I don't know about cheaper! http://www.ceramaterials.com/itccoatings.html

    pss: found a small amount: http://www.hightemptools.com/itcproducts.html
    Last edited by Drkailey; 08-24-2017 at 10:01 PM.

  10. #10
    Senior Member OCD's Avatar
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    Check ITC's website a little better, I could have sworn they have/had a ITC coating specifically for crucibles.
    Or, just call them.

    I purchased mine off ebay from a dealer.
    You can always do the price offer thing there as well. Hint, Hint.

    You mix the 100 at a ratio of 2 parts product to 1 part water, mix thoroughly and apply with a paint brush.
    Once mixed it's pretty thin.
    Just make sure you keep it agitated / mixed during the application process.

    When you fire it off for the first time make sure your outside.
    It STINKS to high heavens until cured during the firing process.

    Well worth the dollar.

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