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  1. #51
    Moderator w8ye's Avatar
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    RE: applying koverall with WBPU

    Probably be best for you to try it on your own and develop a personal preference
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
    Recipient, Mangledhand award August 2008
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    Original AMA #31261

  2. #52

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    RE: applying koverall with WBPU

    it will feel to0 thick if you try it that way. just add in more polyc. i also have switched to an automotive acrylic sandable primer afterwards. plenty of weave fill in this way. i just roll it on with a 3" foam roller.
    David

  3. #53
    redball8's Avatar
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    RE: applying koverall with WBPU

    I've been experimenting with fabric, latex and polyurethane coatings for a few years, and really like the ideas in this thread.

    Will definitely have to try the dress lining on my next project (Giant Telemaster), should save a few $$ over Koverall. Had the idea to get the dress lining in the basic colors I need, then could literally use it as a trim color fabric after coating with WBPU. Should be light & plenty tough. Thanks for sharing the technique, Sscherin!

    I've been getting stuck on clear-coats, though. I fly glow, and in my experience water-based polyurethanes (Sherwin Williams exterior Spar urethane) do not hold up to glow fuel. Have heard solvent-based PU does but has an amber tint. Then there is Klass-Kote (solvent based epoxy) and Nelsons (moving back to Chicago, hope he remains a going concern). In the end I have settled for rattle cans of gloss or satin Lustrekote, though one needs to take care and apply light dusting coats over latex. My goal is to get "solvent-free".

    Sscherin, could you recommend that brand of water-based exterior PU that holds up to glow fuel? Edit - Found what you used (Valspar water-based spar urethane) but having a heck of time locating it! May just experiment with the spar urethanes I can find.

    And I see that Nelson's paint is cross-linked polyurethane. Can one just use their crosslinker in off-the-shelf WBPU? Or get the crosslinker elsewhere?


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