Our glass furnace had exploded (cold hot contact). A repairman found compatible, the glue had not kept up ... off the glass. In desperation, amazon search glue for high temperature furnace glass. Delivery nickel as usual. Only problem, instructions in English but hey it's not complicated to understand. cleaning very important surfaces - bonding, it was left to stand for a long time (2 days) - Cutting silicone too and finished. We heated the vacuum furnace 3 or 4 times, there is a special smell to start cooking (silicone) but the smell disappears. Use for more than a month, perfect.
