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Thread: Can Tung oil go bad?

  1. #1
    Join Date
    Feb 2007
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    Can Tung oil go bad?

    I had a bottle of pure Tung oil, for about a year in a cupboard in my shop, which is a dry and cool place and obviously protected from both artificial and sunlight.

    Today I was going to make some tests and when I picked the bottle it looks as you see. Sometime ago I had noticed it had settled out that white thing on the bottom, but today there are these strange things in suspension which I don't know if are crystals of sort or whatever.

    Should I stir it, or rather filter it or throw it away?. I've applied it to a scrap and it looks fine dunno... Any help will be appreciated. Thanks
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    Best regards,
    Toni

    __________________________________________________ __________________________________________________ _________________
    web site:http://www.toniciuraneta.com
    I also dream of a shop with north light where my hands can be busy, my soul rest and my mind wander...

  2. #2
    Join Date
    Nov 2006
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    Delton, Michigan
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    my vote is pitch it toni, but you could ask jeff jewitt for his thoughts.
    If in Doubt, Build it Stout!
    One hand washes the other!
    Don't put off today till tomorrow!

  3. #3
    Join Date
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    Can tung oil go bad? In my limited experience with pure tung oil, it's never good to begin with.
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

    workingwoods.com

  4. #4
    Join Date
    Jun 2007
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    Oceanside, So. Calif. 5 mi. to the ocean
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    Quote Originally Posted by Vaughn McMillan View Post
    Can tung oil go bad? In my limited experience with pure tung oil, it's never good to begin with.
    Vaughn, did you say that tung in cheek?

    Enjoy,
    JimB
    First of all you have to be smarter than the machine.
    VOTING MEMBER

  5. #5
    Join Date
    Feb 2008
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    East Freeetown, Massachusetts
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    My "guess" is no - BUT

    I also agree with Vaughn - it did not start out good.

    If you apply it - and it dries - it's probably good.

  6. #6
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    Nov 2012
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    Wapakoneta, OH
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    I wouldn't think pure tung oil would have anything settle out.

  7. #7
    Join Date
    Mar 2007
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    Southeast Pa
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    I always thought tung oil went bad if you got to much air in the container and basically it goes ahead and cures in the bottle. However from what I understand over here most of what is sold as tung oil isn't.
    Garry
    Last edited by Garry Foster; 02-16-2014 at 04:51 PM.

  8. #8
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    Quote Originally Posted by fred hargis View Post
    I wouldn't think pure tung oil would have anything settle out.
    My thought also. Are you sure it is pure tung? Try thinning it.
    "Folks is funny critters."

    Think for yourselves and let others enjoy the privilege to do so, too. ~Voltaire

  9. #9
    Join Date
    Apr 2009
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    I have a bottle of Pure Tung oil I've had for 3-4 years that is still good. But I use a squeeze bottle which dose not allow air into the bottle.
    I dream a lot. I do more painting when I'm not painting. It's in the subconscious.
    ::: Andrew Wyeth :::
    colonialrestorationstudio.com

  10. #10
    Join Date
    Dec 2006
    Location
    Oliver Springs, TN
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    I got a bottle I've had a long time. Last I used was still good. When I get some out of the bottle I always squeeze all the air out and then put the cap on. I was told that it will react with the air in the bottle and try and cure. Don't know if this is true or not, but mine has lasted.

    I'd toss that stuff

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