Hi again, and thanks so much for the helpful replies to my previous first post.
Does anyone have suggestions how to beef up the structural integrity of the standard perlite/clay refractory insulation with a fiber additive? I've heard of "cobbish" which incorporates lamb's wool, but it looks like a bit of a pain, and I don't have a good source. I was looking at the fiberglass fibers in standard insulation, but they seem pretty tiny length-wise when pulled apart, at least in the sample I checked.
Has anyone found a decent, readily available refractory material to do this?
I was looking at the fiberglass fibers in standard insulation, but they seem pretty tiny length-wise when pulled apart, at least in the sample I checked.
I did read about someone using fibreglass.
I was thinking about doing this as well. My thoughts on this: The fibers might be small, but that is not a bad thing, as you are looking for micro re-bar. They will bind bit by bit throughout the mix. Wear a mask. Mix them into your dry mix so that you get them evenly distributed, and then add your water. Make a mix of just the fiberglass fibers (in higher quantity with clay slip) and run that over the internal surface to give it super strength.
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