[EdHolland]

I just remembered, I have some hi temp silicone rubber material which could do the trick. Or a piece of FR4 laminate. The other idea I had was to fold several layers of alumin(i)um foil and attach it with Kapton tape. That would be a safe and effective heat shield.

[Arran]

Ed;
One material that I have seen, but never tried for this was material for making exhaust gaskets, it's similar to asbestos but is not of course, some auto parts stores like NAPA sells it.
Regards
Arran

[radiorich]

hello Ed,
how about that speacial tape used for ducting it's like foil or how about thin piece of
aluminum roof flashing and use really good double back tape.

Sincerely Richard

[EdHolland]

Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately.

More later.