Pete
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pe...@gdstech.grumman.com
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> Have successfully used joint compound on sheetrock over the years,
> but am now wondering if it's OK to use it to patch plaster walls
> with it, or should a certain kind of plaster-paste be used?
It's worked for us quite well, but make sure you prime it with a good
quality primer. One of those quasi-plastic primers seem to work the best,
I think the brand we used was Zissner or something starting with a Z,
available at Home Cheapo.
But then again, ask me again in a few years once it ages...
Good luck and have fun.
Ryan
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Ryan Wilson/Portland, OR | BOYCOTT CLIPPER TECHNOLOGY
ryan_...@kvo.com | CLIPPER = BIG BROTHER
All these opinions, humble or otherwise, are my own.
-archer gravely
-unc asheville
When I refurbished my house, I used patching plaster for all the big cracks and defects but used joint compound for the shallow defects and general surfacing tasks. The key to using patching plaster is to get it to stick well to the old stuff. I used a bonding adhesive made for use with plaster and concrete. Five years later and you can't tell where the patches are.
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Keith T. Lukaszek
luka...@elec.mid.gmeds.com
> Have successfully used joint compound on sheetrock over the years,
> but am now wondering if it's OK to use it to patch plaster walls
> with it, or should a certain kind of plaster-paste be used?
Water based joint compound could cause an unwanted lime reaction with
plaster. If you insist on using this material; 1st remove all loose
material & dust. Wash the area to be patched with vinigar. When dry, prime
the entire an oil / alkyd based primer and then patch with joint compound.
Deep cracks / holes should be filled with plaster patch compound or
plaster and then left shallow. Apply joint compound as a top coat over
these deep repairs. For best results, follow the prep instructions above
even before making plaster repairs with plaster compounds.