Hey everyone. I've found the perfect CRT caulk for applying to the CRT neck and along the deflection yoke. It's called RTV and it's what Sony used for BVMs back in the day. It's got a high heat tolerance and all around great.
Here's a link for the product: https://www.amazon.com/dp/B01BWZ1RSK/ref=cm_sw_r_cp_apa_i_FLUnFbK4KFCKS
Have a great weekend!
- Steve