Firehawk Posted October 5, 2014 Report Share Posted October 5, 2014 Hi All, I am making a frame and panel front for a tub for my son's house. It will be finished in white latex paint. Can I put polyurethane over the latex to give it more protection? Any thoughts or comments are appreciated. Thanks, Mark Quote Link to comment Share on other sites More sharing options...
wdwerker Posted October 6, 2014 Report Share Posted October 6, 2014 I have used water bourne acrylic finishes over latex for similar bathroom woodwork. Using latex enamel ( trim paint) is smart. One important step is to leave a gap under the panel so it will never sit in a puddle of water. Quarter round, or shoe molding will cover the gap. I always finish removable panels on all sides while they are loose before installation. Stainless or brass fasteners are a good idea. Quote Link to comment Share on other sites More sharing options...
wtnhighlander Posted October 6, 2014 Report Share Posted October 6, 2014 The water bourne acrylic that wdwerker mentioned is less likely to give the white paint a yellowish cast. Regular oil based poly has a distinct amber tone. The "spar" version is even worse. Quote Link to comment Share on other sites More sharing options...
wdwerker Posted October 6, 2014 Report Share Posted October 6, 2014 The stuff I use is only sold to Pro finishers but Minwax does make a water based spar urethane . I haven't used it. I would strongly recommend making a test sample board with a few coats of the paint( light sanding between coats) and then a couple of coats of the urethane. Make sure you pay attention to drying times and read all the instructions. Quote Link to comment Share on other sites More sharing options...
wouldwurker Posted October 8, 2014 Report Share Posted October 8, 2014 I've been putting Minwax polyacrylic over the furniture and built-ins in my house that have all been painted with latex paint. No yellowing over the white paint, good protection, and a much better feel to the touch. Sorry I can't speak to a humid bathroom environment, through, a couple coats should lock out the moisture. Quote Link to comment Share on other sites More sharing options...
Boatworks Today Posted October 8, 2014 Report Share Posted October 8, 2014 I just ordered some GF high performance for a similar application. Making a cherry cabinet / shelf thing to put over the downstairs loo and will have some white v-board as a backer. Using GF milk paint for the v-boards and planning to use the high performance over top for added protection. Supposed to be water clear; will let you know how it works (although any yellowing wouldn't happen for a few months ). Cherry is getting finished with arm-r-seal Quote Link to comment Share on other sites More sharing options...
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