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Old 03-29-2013, 05:19 AM   #1
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Filling 2" section on plaster background


Hi,
I've removed a cable conduit which was fixed to the wall before the walls were plastered (not by me!). I would like to fill the gap with plaster to get a clean finish prior to painting.
I intent to sand the background and fill with plaster, however I was wondering if I need to reinforce the joint between the new plaster and the old?
Thanks for any help

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Old 03-29-2013, 08:18 AM   #2
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Filling 2" section on plaster background


Can you post a picture so we can see what it is you have to deal with?

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Old 03-29-2013, 10:26 AM   #3
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Filling 2" section on plaster background


Filling 2" section on plaster background-image-2061532674.jpg
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Old 03-29-2013, 10:28 AM   #4
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Filling 2" section on plaster background


The photo is a close up of a section of missing plaster after removing the cable trunking.
It's about 2 inches wide and 3 metres long, on the internal corner of a stairwell.
Hope that give a clearer picture.
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Old 03-29-2013, 11:19 AM   #5
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Filling 2" section on plaster background


From what I can see there I don't you need to reinforce just a good fill. Are you going to use plaster patch or joint compound?
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Old 03-29-2013, 11:33 AM   #6
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Filling 2" section on plaster background


I don't see the gap you're speaking of. I just see a hole.
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Old 03-29-2013, 12:58 PM   #7
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Filling 2" section on plaster background


Thanks for the advice tool keeper.

I'll sand and make sure theirs a good key and then just fill with a plaster filler.
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Old 03-31-2013, 08:38 AM   #8
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Filling 2" section on plaster background


Plaster can not fill voids that size. Fill it with blue board then tape the joints and plaster it. Then you will need to add a tight coat of joint compound. If you try to use plaster to fill a gap that size it will fail, ie crack.

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