I am about to start patching some holes (some fairly large) in a lath and plaster wall, that I intend to skim when finished.
I was thinking about using Bonding plaster to build up the holes where I have knocked off the loose plaster back to the laths. I will wet the laths first with a diluted Pva solution.
Does this seem like a reasonable solution for the job, or has anybody got some better idea ?
TIA
Con
Don't mix the plaster to watery or it will fall through the gaps. Make it very stiff for the first coat. The rest of your idea is sound in my opinion.
Sounds OK - think about electrical stuff while your walls have holes in them, it's easy to put a piece of board between noggins to mount switches, sockets etc. at this stage. Make sure the laths are secured properly with nails, prime the edges of the plaster with dilute PVA (a couple of coats, don't let it dry) before patching with new plaster). Wetting the lath is not of great importance as the strength comes mechanically from the "nibs" of plaster that hang over the back of the lath, not from adhesion between the plaster and timber. Don't press too hard, ofr you will fill the void with plaster, it squeezes in quite easily! If you can see the back of the lath from the other side you will be able to see what's happening.
ISTR you asked about "Marshalltown Xtra Lite" - I think it's just a logo etched into the blades, not a brand name. Anything
1/2 way decent should be OK - personally I don't like stainless, but YMMV. What did you get?
Hi,
for patching holes I use something called "Knauf DIY One Coat Plaster" This will go on very thickly, does not seeem to shrink or crack, and also seems to last a long time in the bag. I have had this bag for a couple of years and it still seems to mix well and work without going off too quickly. 'Normal' plaster doesn't seem to have a very long shelf life before it starts to 'go off' very quickly. This plaster is quite grainy, and has a white colour.
For a final skim, I guess something like Thistle Multi would do the job - seems to be O.K. for the fiddly bits I am doing and the plasterer certainly achived a good finish on plasterboard with it.
The bad news is that I can't remember where I got this plaster a bummer because my bag is almost empty and I found it so good I would like another bag.
I know it was one of the sheds, but which?
HTH Dave R
It sounds just like my bag of Wickes own-brand one-coat stuff; clicking on "Where to buy" at the Knauf website
David
| > for patching holes I use something called "Knauf DIY One Coat Plaster" | > The bad news is that I can't remember where I got this plaster | | It sounds just like my bag of Wickes own-brand one-coat stuff
My bag of Wickes plaster has printed on the back of it in small writting that it's Knauf...
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