Last Updated: Oct 07, 2016 Views: 146
I asked Harry Seaman, Facility Manager, The Studio, CMoG about your crucible. He answered:
"As far as borosilicate crucibles, I believe it is ok to use high alumina crucibles for borosilicate temperatures and glass. It tends to be right around the temperature we charge some soda lime glasses at."
Try contacting Eugene Glass School to ask about their experiences melting borosilicate glass:
Also, try searching the internet for boro furnace / borosilicate furnace. For example, I found this site:
Please let me know if you would like me to do further research on this topic. I know there are other glass artists melting borosilicate glass in a crucible.
I apologize for my delay in answering your query.