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Thread: Aniline dye frustrations

  1. 10-02-2019, 4:19 PM #16
    Thomas McCurnin's Avatar
    Thomas McCurnin
    Thomas McCurnin is offline Friend of the Creek
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    With any wood like pine or mdf, they will blotch. I would use a water based pre-conditioner, the one I use is General Finishes pre-conditioner. It is really time sensitive, so one has only about 10 minutes to apply the dye. You can also seal the mdf with a quick light spray of shellac from a can, and then apply your dye. I would use a bunch of test boards and find out what works for you.
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  2. 10-03-2019, 9:03 AM #17
    roger wiegand's Avatar
    roger wiegand
    roger wiegand is offline Contributor
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    FWIW, the Trans-Tint type dyes are supposed to be much more colorfast than aniline dyes. They dissolve well in both alcohol and water. A light coat of shellac seems to take care of most blotchiness. (though I've never stained MDF)
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  3. 10-03-2019, 10:16 PM #18
    Edward Dyas
    Edward Dyas is offline Member
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    I wouldn't expect MDF to not be blotchy. We used to just put a clear lacquer finish on MDF and it was blotchy.
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