|
|
|
|
lime plastering - expected costs vs gypsum
(Anna Kettle) wrote in message ...
Lime plastering should be cheaper, the materials are cheaper, and any
that falls to the floor can be re-used, unlike gypsum (as long as the
floor is clean), so there is less wastage. As the plaster can be worked
for longer, its easier to apply, the only downside is that it takes
longer to set.
No its not cheaper its more expensive because lime takes longer to set
than gypsum and it has to be tended during that time. The tending time
adds a certain amount to the bill
It shrinks and cracks during that time? I ask cos I have this insane
idea of trying a small bit of lime plastering one day later in the
year. I've never plastered anything.
I was reading up on making the stuff, and I gather quicklime is whats
wanted, slaking it yourself. I have some hydrated lime here - is it
possible to put it in the oven to dry it out? Or is that nuts?  I
ask because I know lime based dehumidifiers can be recharged by oven
heating the wet lime.
I looked up quicklime manufacture, but that process is quite different
to just driving off moisture, and I would expect one need not use the
same kind of high temps just for drying. I did google but didnt get
what I wanted to find out.
Regards, NT
|