Thomas Tipton wrote:I was interested in hearing more about an 8" riser.
Unfortunately the original company mentioned in this post went out of business. The company that bought them out would make an 8” riser if requested but there would be a $1000 mold fee up front, so unless a lot of people organized a group buy for 8” risers it would be cost prohibitive.
Thanks Brian, I have been planning on making a riser out of shredded ceramic fiber using a mold constructed from a 48" length of 8" Sonotube and a 48" length of 12" Sonotube. I was going to saturate the fiber with Sodium Silicate, then pack it into the mold and cure it with carbon dioxide. Probably by using a vacuum pump and CO'2 cylinders.
Hopefully, when it is set, I would be able to slide it out of the Sonotube and then coat it inside and out with 3000 degree refractory cement. This would give it a "Hot Face" on the inner surface, and the application on the outside just to give it added strength and rigidity.
Any idea if this has been tried before? To what degree of success?
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