We used vermiculite to make some firebricks for a mini forge!
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We used this ratio for the mix:
7 parts Vermiculite (medium)
2 Parts Cement
2 Parts Sand
3.5 Parts Water...
Making a simple flame guard to stop the direct heat of a raging oven burning the pizza crust before the middle is cooked through.
Material used was 304 stainless steel.
Evan Schaeffer - AROUND THE BEND