So i have a question regarding on whether or not Bentonite can be used as an alternative to a homemade refractory recipe calls for fireclay. Manly why i am saying this is a have a very good and very cheap source of Bentonite clay at my disposal where my supplier provides it for a cheap price i think, which is usually around $8 for 30- 45 lbs.
I want to run a better furnace for as cheap as i can get it and would gladly like to know if it would be ok to use Bentonite as an alternative. I have read that because Bentonite is so hydrophilic that there could be cracking in the refractory from the clay when drying and a tip to help prevent that if it is ok to use would be much appreciated.
*I am a new member and am not sure if i have posted in the correct section or not or should looked for an older thread dealing with this?*