Sealing MFC for bathroom

Doc M · Post by **Doc M** » Fri Jun 23, 2023 1:31 pm

Hi All!

I bought an MFC textured woodgrain vanity unit: https://www.heatandplumb.com/acatalog/n ... t-arn2505d

Our bathroom has high humidity and no extractor.

I doubt very much that this vanity will make it through the winter without sealing - I have no idea what to seal it with. Also, I will be buying a dehumidifier to offset the lack of extractor fan.

I have leftover Zinsser Perma-White satin (that I used on the bathroom ceiling) that I could use on the exposed chipboard (see picture), but I was hoping that I could use some kind of clear varnish or sealer on the woodgrain effect melamine to help protect further against moisture/humidity and prevent the vanity from blowing/warping/deforming. Help! :dunno:

moderator2 · Post by **moderator2** » Fri Jun 23, 2023 1:36 pm

Doc M, Just one thread per topic please. I've deleted the duplicate in Carpentry.

dewaltdisney · Post by **dewaltdisney** » Fri Jun 23, 2023 2:18 pm

I would use a varnish on exposed edges, as long as they are sealed it will be fine. Melamine is impervious to water in the main it is the moisture that creeps into exposed edges that casues a panel to blow. It would be an idea to explore the excess humidity issues and find a remedy.

DWD

Doc M · Post by **Doc M** » Fri Jun 23, 2023 3:59 pm

Thanks dewaltdisney - I'll make sure to varnish the exposed chipboard with no malamine strips. I'll look into an extractor or dehumidifier!