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Thread: Finish Question

  1. #1
    Join Date
    Jun 2008
    Location
    GTA Ontario Canada
    Posts
    12,260

    Finish Question

    How long does wipe on poly last once can has been opened?

    Beginning to think i should have bought a smaller tin and rather buy more frequently in small quatities.
    cheers

  2. #2
    Join Date
    Jul 2009
    Location
    Amherst, New Hampshire
    Posts
    10,604
    I usually buy it in quart size cans. The one I'm using now has been around for about 6 months. Still cures OK. The only annoying problem is the hardened old poly around the spout and cap.
    Faith, Hope & Charity

  3. #3
    Join Date
    Mar 2008
    Location
    NH
    Posts
    4,006
    Quote Originally Posted by Bob Gibson View Post
    I usually buy it in quart size cans. The one I'm using now has been around for about 6 months. Still cures OK. The only annoying problem is the hardened old poly around the spout and cap.
    That annoying thing is what keeps it fresh
    It could be worse You could be on fire.
    Stupid hurts.

  4. #4
    Join Date
    Aug 2008
    Location
    Reno, Nv
    Posts
    3,632
    The jury is still out Rob, some people have it around for a few years...in cooler climates, and others a few months...in really hot places. If it doesn't go tacky in a couple hours (depending on the wood and level of finish) wipe it down with mineral spirits and get new stuff.
    Your Respiratory Therapist wears Combat boots

  5. #5
    Join Date
    May 2011
    Location
    So. Florida
    Posts
    268
    There are a lot of variables to give a time element. I would suggest to buy a regular oil base polyurethane, or varnish, instead of a packaged wipe on version. That way, you can mix your own (as needed) making notes of the ratio of the mix. When needed, mix on the spot with a pour out amount, and cap the source. This limits the exposure that open cans experience.





    .

  6. #6
    Join Date
    Nov 2006
    Location
    Between Aledo and Fort Worth, TX
    Posts
    2,784
    If oxidation is the problem with it going bad, get a can of Bloxigen, got mine at Woodcraft, and give a 2 or 3 second spray of that before sealing up. It is heavier than the air we breath, and is an inert gas. I used it in my can of Waterlox and it worked great, right up to the point when I shook the can to mix it up and oxygenated the mixture, and ruined it. Before that, it had lasted for about a year and a half. Just a thought. (But don't shake the mixture, what ever it is!) Jim.
    Coolmeadow Setters...
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