After reading multiple forum posts about re-coating the flyback, i've settled on the following RTV.
Brand name: Momentive / SNAPSIL
Model RTV: RTV-133 Silicone Rubber
It's been reported good to use on flyback transformers, and carries the following traits:
- It does not produce acetic Acid .
- It utilizes an atomospheric moisture cure system, which releases an
alcohol vapor from the sealant surface during cure.
- Dielectric Strength: 20kv per 1mm layer.
I've got a MSDS sheet listed
here for more reading/ spec.