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Post by independentenergy on Aug 2, 2015 12:30:09 GMT -8
I find myself having to choose which type of plaster used for my brick stove.
There is something, excluding the Cob, which is not toxic and can better resist to high temperatures?
If you are not used Cob what used?
I thought about the possibility of using tiles
Any suggestions?
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Post by AlexHarpin on Aug 2, 2015 14:37:18 GMT -8
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Post by independentenergy on Aug 3, 2015 13:44:37 GMT -8
How it behaves at high temperatures?
I will use a thin layer of super wool, network from plaster, and then the plaster real few centimeters thick.
thanks for the reply
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Post by patamos on Aug 4, 2015 9:33:36 GMT -8
You might be interested in 'Litema' (Ditema). Which is most accurately refers to african decorative techniques, but is used generally to describe combinations of clay, manure and maybe some fine sand.
I like to use a mix involving one part thick clay slip (screened through 1/8" mesh), one part horse manure (shredded through a leaf blower and then screened through 1/4" mesh to get the chips out) and 1 part fine sand.
It goes on very smooth and is easy to work with.
if you want lighter colours then best to rinse the horse manure once to get the tannins out.
I haven't used much cow manure but i hear it can be very strong.
I'm not sure at what temperature the manure fibers will burn out, but i am pretty sure you are safe outside of the fire chamber.
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Post by AlexHarpin on Aug 4, 2015 16:51:17 GMT -8
How it behaves at high temperatures? I will use a thin layer of super wool, network from plaster, and then the plaster real few centimeters thick. thanks for the reply I did a layer of lime plaster on my bread oven and it behaves pretty good, it can handle the heat. |
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Post by independentenergy on Aug 7, 2015 0:04:49 GMT -8
Alex did you use only lime, or have mixed other materials?
It is cracked on the surface after heating?
Thank you
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Post by AlexHarpin on Aug 8, 2015 6:42:58 GMT -8
-lime
-water
-sand
-cattail head
the same recipe as in the above link. The plaster didnt crack at all. Like I told you it behave very well with the heat.
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Post by patamos on Aug 8, 2015 10:30:55 GMT -8
Here in North America the lime tends to be a lower quality. Our only simple option is to slake bagged Type 'S' hydrated lime.
One bag (preferably from newer rather than older stock) in a metal garbage can and mix with about 2 or 3 times the amount of water. Blend with a big paddle mixer. Can should be 2/3rds full or so.
This is a simple way to slake the lime. Once it is blended put about 1 or 2 inches of water on top to inhibit carbonizing, put the lid on tight. The longer you leave it the stronger and more elastic it will be. It is easy just to leave a can or two hanging around like that. Blending it every now and then will help.
The rest of the mixing happens after you have let this slurry sit for at least a few days if possible…
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