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Re: GSBN:Re: Half lime, half cement plaster mix
- To: "GSBN" GSBN@...
- Subject: Re: GSBN:Re: Half lime, half cement plaster mix
- From: johns@...
- Date: Tue, 28 Jun 2005 20:19:17 -0400
- Reply-to: "GSBN" GSBN@...
- Sender: "GSBN" GSBN@...
Some friends of mine are considering using the above ratio of lime and cement
in their plaster. They recently asked if I knew of any good reason why they
couldn't successfully use standard, commercial plaster pigments to get a color
like mud plaster in the final layer (aka, color coat). I told them I had
never used pigments in such a mix, but if the pigments consist of various oxides
of iron, I didn't think that the higher-than-usual amount of lime in the mix
would cause any problems. If any of you have reason to think that this was not
a good answer, I'd sure appreciate hearing from you.
Standard pigments will work. We've also used dirt/clay from the site
sucessfully as a colorant, when the site material was dense with color. Of
course, you can get a mud color, but it won't refract light like real earth
Also, they asked the same question about adding chopped straw to their mix,
in order to get a rustic texture. I told them that I had only used chopped
straw in mud plasters and in mud/lime plasters, but that I thought that it would
also work fine in the half lime/half cement mix, assuming that they didn't
add so much that it significantly weakened the plaster . Again, if you think my
answer needs adjustment, please share your thoughts.
You can do it, but it's possible that the high lime content could eat away
at the straw a bit, but I'm not sure about this.
All best wishes to you all from Judy and myself.
Matts Myhrman / Judy Knox mattsmyhrman@...
Out On Bale, (un) Ltd.
1037 E. Linden judyknox42@...
Tucson, AZ 85719
Office message phone (520) 622-6896
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