(first post here) Hello all, I'm attempting a ceramic shell cast that requires a core. Tried it without and it fragmented on burnout. Would a sodium silicate core survive the burnout/vitrification temperature? If not, anyone know any commonly available materials or methods from which I could make a core to put inside a wax or PLA pattern and then go through the suspendaslurry process? My first thought is maybe attempt a 3D printed core box to hold, dry, and burnout a suspendaslurry/sand core similar to a sodium silicate core. Thanks for any input!