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Posted by on December 3, 2006, 5:53 pm
The corner bead is embedded under the patching compound. I don't know
how moisture got to it, unless it just permeated the wall slowly over
the years. I'm sanding down the metal bead to get all rust off. It
isn't consumed with rust, but just enough for rust stains to be showing
along the outside corner...enough to stain the wallpaper.
So I'm going to prime the exposed bead and patch over it. Any better
ideas?
I may be able to use tape, or maybe place a new vinyl bead over it to
get a clean-shaped edge.
Norminn wrote:
> gplantam@gmail.com wrote:
> > The corner bead around one of the windows in a bathroom is showing rust
> > through the wallpaper. I guess it was put in when the house was built
> > back in the early 1980's. Should I replace the bead to prevent rust
> > from progressing & staining the new wallpaper/paint or can I just paint
> > over it with some rust preventing paint?
> >
> I have a corner bead, right at the entry to our shower, that rusted
> quite deeply - all along the flange at the bottom. After grinding off
> rust, putting on Rustoleum primer, it continued to rust through the
> patching compound. I finally dug it out again and cut off the section
> that was worst rusted, primed what I could reach, "walled off" the
> deeper edge with silicone caulk, let that cure well, and then patched
> and painted. About a year and a half, and it is holding. The problem
> was that the tile baseboard took a very minute dip by the corner bead
> and would hold water. Fixed that, too, by building up the grout a
> little bit. After I put up new wallpaper, I taped the bottom edges and
> sides of paper (next to shower stall) with a fine line of grout to keep
> steam from loosening the paper.
>
> If just the corner has a touch of rust, I would sand off the rust, use
> rust primer right away, let it cure very well. Be sure the room is very
> dry when you work on the bead.
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