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Thread: MDO edge weatherproofing

  1. #1

    MDO edge weatherproofing

    I have built snowman family yard ornaments for all the ladies in our family and after six years I need to repaint the set I made for my mother. The edges are the only areas of real concern as they have shed nearly all the paint and primer. I had primed them with exterior primer but that doesn't seem to be adequate. Is there something else that I can seal the edges of the MDO with that will last longer? TIA.
    Jerry

  2. You could use a thin, "penetrating" epoxy for the MDO edges, especially if you are using waterbased primer and paint (oil based paint sometimes is incompatible with some epoxies). Thin epoxy is sometimes sold in small amounts as a product to stop rot in wood (it doesn't really stop it, but it covers it up well!) East System epoxies are thin, RAKA and System Three epoxies are medium viscosity, but would work as well. The thicker ones like West System might be harder to brush on an even coat, but may work as well.

  3. #3
    Epoxy thins with alchohol.
    Mix it.
    Thin it.
    Paint it on.
    The model aircraft and boat people
    have been doing this for years.
    Per
    "all men dream: but not equally. Those who dream by night....wake in the day to find that it was vanity; but the dreamers of the day are dangerous men, for they may act their dream with open eyes, to make it possible."
    T.E. Lawrence

  4. #4
    Thinned epoxy sounds like a good solution, I'll give it a try. Thanks guys.

  5. Quote Originally Posted by Per Swenson
    Epoxy thins with alchohol.
    Mix it.
    Thin it.
    Paint it on.
    The model aircraft and boat people
    have been doing this for years.
    Per
    Alcohol or acetone?

  6. #6
    I checked with West systems some time back and they said you culd use lacquer thinner if you don't go past about 10%
    Steve Jenkins, McKinney, TX. 469 742-9694
    Always use the word "impossible" with extreme caution

  7. #7
    Alcohol.
    Denatured
    This works and works well.
    Per
    "all men dream: but not equally. Those who dream by night....wake in the day to find that it was vanity; but the dreamers of the day are dangerous men, for they may act their dream with open eyes, to make it possible."
    T.E. Lawrence

  8. #8
    Join Date
    Jan 2004
    Location
    San Jose, Middle California
    Posts
    636
    MinWax has a product that works well for sealing the edges of wood. I have used it on MDF to seal the edges and it works for me.

    http://www.minwax.com/products/woodmaint/hardener.cfm
    Michael in San Jose
    Non confundar in aeternam

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