:are we talking about Plaster = sand, lime, ect or Drywall compuond? If
:you are talking about real plaster why not just use drywall compound?
:you can get pretty much the same visual effects as plaster if applied
:correctly....the walls in my home are plaster and button board with
:about 15 years of paint on top of them I wanted to recreate the plaster
:look and did so with drywall compound you wold be hard pressed to tell
It may look the same, and I'm not speaking from experience here but I've
been doing a fair amount of research, but drywall compound has some
significant downsides compared to plaster. You can't build it up too
much on a per-coat basis, you have to let it dry between coats and you
have to sand between coats and you get a lot of dust. Plaster you can
work much faster and be done with everything but the cure dry phase in a
matter of minutes. I think that plaster's probably a whole lot tougher,
as well. Also, if you are applying directly over lath, it's either
plaster or work out some kind of intermediary layer, such as wallboard
cut to size - either blueboard or wallboard treated with alum or another
adherence layer, such as Larsen's Plaster-Weld.
:> I've read posts about alum, which people say you can apply to wallboard
:> so that plaster will adhere. This would be in lieu of using blueboard.
:> All the supplier's I've called haven't heard of alum. Where can I get
:> it? Is it a powder, you mix with water?
:> I've also heard of Larsen's Plaster-Weld, for plaster adherence. It's
:> not cheap, however. A local supplier has it:
:> 1 gal. $23
:> 5 gal. $105
:> I have no information on it, but would guess that a gallon would cover
:> 250 square feet. I'm thinking of this for plastering certain
:> non-wallboard surfaces, either finish coats or two-coat.
:> TIA for any info.