Glass Symphony copper paste and glass rod
The red with diamonds bit puzzles me...
JoJo never used or mentioned this so I am not sure what he is looking for.
Seems the OG poster is not too sure either...
What he needs is a copper based thermal paste that does NOT expand when heated.
A LOT of the thermal compounds DO expand after heating and this WILL crack the glass.
This is perhaps why JoJo had to "cook" his heaters down while adding the compound.
I do not use that paste, my heater has never broken. It is just an option I quickly found.
No guarentee on if it will work. I would need to do a LOT more research...
If I know more about this red paste and diamonds, I can help.
Otherwise your best bets is a thermal compound that does not expand when heater.
Another issue could be cheaper/thinner glass that is being used now?
As I said, mine is Number 1 and still works perfectly and is not cracked.
Not sure how some people can crack that glass.
Any extra info on what you are looking for would be helpful.