how can I make firebrick at home?
I wanted to make fire brick so I could make a mold out of it fill it with glass chips and throw it in the kiln so that the glass will melt into the shape of the mold. But I don’t want to buy some so could I get a recipe for making fire brick or something that can withstand intense heat? I also tried plaster of paris but that just cracked and crumbled.
Thanks! and please answer I will select the best answer!!!
I meant to say fire clay
Glass molds can be made from a 50-50 mixture of plaster of paris and silica flour. Both of these can be bought from ceramic supply places. Careful with silica, it does things to lungs if breathed. The mold is not reusable
You can also use thin potters clay as shown here http://users.ticnet.com/mikefirth/warmglas.htm#PLAYBOX
and you can buy a plaster like mix designed for glass sagging and fusing, bought some to try, out in shop
visit www.warmglass.com to share information
“fire brick” is available in castable form from refractory suppliers (check the yellow pages for nearest large city) Not the best stuff for molds.
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