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Thread: Using conversion varnish over oil based finish

  1. #1
    Join Date
    May 2007
    Location
    Florida
    Posts
    499

    Using conversion varnish over oil based finish

    Has anyone used conversion varnish over a cured oil based finish such as Waterlox. Iím trying to finish a large table top and have applied several coats of waterlox original and a few final coats of satin, but I continually get dust nibs in the finish that require sanding and another coat. I was thinking of letting it cure for a few days and then spraying a couple coats of conversion varnish over the top. The conversion varnish alone doesnít give the deep rich color that the oil finish does.

    Thanks, Dan

  2. #2
    Join Date
    Mar 2003
    Location
    SE PA - Central Bucks County
    Posts
    48,786
    Please provide more information about what specific product you are considering to apply over the oil based varnish...."Conversion Varnish" can be different things depending on the manufacturer and specific product.
    --

    The most expensive tool is the one you buy "cheaply" and often...

  3. #3
    Join Date
    May 2007
    Location
    Florida
    Posts
    499
    MLCampbel envirovar clear satin

  4. #4
    Join Date
    Mar 2003
    Location
    SE PA - Central Bucks County
    Posts
    48,786
    Since that's a solvent based product, you may want to ask ML Campbell if it will react with the existing varnish in any negative way. You don't want to end up with crazing if the products solvent can dissolve the varnish.
    --

    The most expensive tool is the one you buy "cheaply" and often...

  5. #5
    You might try covering the surface right away with a large piece of cardboard about 6Ē to a foot above the surface. That will keep the dust off of it. Just make sure the cover is free of dust first, works for me.

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