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Thread: Help - cloudy waterborne polyurethane finish

  1. #1

    Help - cloudy waterborne polyurethane finish

    I'm working on a project in white oak with the following finishing schedule:

    Transtint dye in vodka
    General Finishes seal-a-cell
    Gel stain, wiped off
    General Finishes performance waterbased polyurethane

    I left 3 days between each step as instructed. Some of the pieces are hazy - see pictures below. Wiping with mineral spirits temporarily eliminates the haze (see the third picture - the shiny part was wiped) but it comes back when the piece dries. Any suggestions? Any idea why I got the milky white goo?

    IMG_2121.jpg
    IMG_2122.jpg
    IMG_2124.jpg

  2. #2
    Join Date
    Dec 2010
    Location
    WNY
    Posts
    9,715
    3 days might not have been enough for the OB stain to dey if the RH was really high. Even when I'm sure it's dry I never like putting WB over OB unless I first seal it with dewaxed shellac. Your finish schedule works w/o problems when the finish is Arm-R-Seal instead of the WB poly.

    How to fix what you've got now is a good question. Wait a few more days would be my first inclination. I'd call GF, too. If they can't offer any help then I might try a blush remover. You might also try a heat gun on low or an iron over a hard cotton or linen cloth. If everything fails then you are stuck and will have to start over.


    John

  3. #3
    The haze on the top is being stubborn, so I think I will just strip it back and try again. I may have covered it too soon. Or I need some shellac.

    For the uprights, I think I didn't clean dust out of the pores well enough. That's tougher.

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