Is it possible to make castable refractory cement at home, how does it compare to the premixed stuff if so in strength and financially, Does anyone know the recipe. Also what is the minimum thickness wall for a cast oven? Thank you
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Homemade castable refractory v castable refractory cement
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Re: Homemade castable refractory v castable refractory cement
Calcium aluminate products have the reputation of being extremely difficult to handle. The raw material isn't cheap, so I would do some test pieces before you spring for the hundreds of pounds of expensive raw materials.
A quote from this site:
Homemade refractories are notoriously slipshod. Professional companies make these to industry
specifications in easy-to-use formats (generally dry, mix like cement.) Every one of the homemade
refractory recipes I've seen costs more per pound than commercial refractories (like Mizzou). But worst of
all, they're costing you money in terms of wasted fuel and time. It takes a lot of heat to bring 100# of
castable refractory up to melting temperatures.
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Re: Homemade castable refractory v castable refractory cement
Here is a castable concrete which will hold probably up to oven use. I intend to try this just as soon as I get some time.
FIREROK HIGH TEMPERATURE CONCRETE
This stuff costs $30 for a 54 lb bag, PLUS SHIPPING. If I lived in Redding, PA, where the stuff is made, I would definately be trying this stuff NOW, but out here in CA, the shipping charges may make this too expensive to use.
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Re: Homemade castable refractory v castable refractory cement
Originally posted by sacwoodpusher View PostHere is a castable concrete which will hold probably up to oven use. I intend to try this just as soon as I get some time.
FIREROK HIGH TEMPERATURE CONCRETE
I have a FB stone that I use regularly & really like. Unlike the common, cheap, tan-colored stones (that always crack), this one has a very different surface texture, is denser & is a concrete-gray color.
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