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Plaster Stains on Old Wooden Feature Beam (Read 559 times)
SollyJoe
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Plaster Stains on Old Wooden Feature Beam
May 9th, 2021, 7:15pm
 
Hi,

I had my walls plastered recently and our feature wooden beam has got dirty. The plaster is now 2months dried. Fortunately I've got any plaster out of the gains using a toothbrush and lots of elbow grease. Just the stains to go. The stains are mainly large splodges and the top 1 inch along entire length.

Any idea how to remove it? I'm open to using stain (if that's applicable here) but I'd rather not take a sander to it unless that's needed.

Joe

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woodsmith
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Re: Plaster Stains on Old Wooden Feature Beam
Reply #1 - May 10th, 2021, 9:19am
 
Hi Jo, I wouldn’t advise using a stain at all, you would have to treat the whole beam and it could end up looking a lot worse than it does now. In fact it looks like you have done really good job of removing most of the plaster and now it doesn’t look that bad to me. I’ve got a house with oak beams and when we moved in we removed a lot of plaster off the beams. Like you we found it still left some stains but they have faded over time. We did try using linseed oil but that just made the plaster stain darker and leeched into the plaster on the walls making even more of a mess.

Definitely don’t  sand it, you would lose all the patina it’s gained over the years. If you want to do something I’d go back to the toothbrush (or a small wire brush) and use some water to wet the plaster stain and that will speed up the fading process,
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Re: Plaster Stains on Old Wooden Feature Beam
Reply #2 - May 10th, 2021, 9:28pm
 
You may find something like this is useful, readily available for a few quid  if you do a quick search,

https://www.ebay.co.uk/itm/173915429717?mkevt=1&mkcid=1&mkrid=710-53481-19255-0&...
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CWatters
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Re: Plaster Stains on Old Wooden Feature Beam
Reply #3 - May 30th, 2021, 2:36pm
 
You could fit another beam in front or an L section beam that wraps underneath.

Fix it to the existing using 2-3 recessed screws and plug with oak dowel.

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