Dear U.S. Diver,
Hope you're well and stay so! Yes. In the plumbing section of a home improvement store or hardware store, you should find a fabric heat shield used by plumbers, when they have to use a torch to braze or to solder near wooden joists, rafters, beams, etc.
See: ttps://www.homedepot.com/p/OATEY-9-in-x-12-in-Hands-Free-Solder-Heat-Shield-314002/100345508 . This shield can tolerate direct flame, up to 2,500°F.
I've never had to cut one of these, so do not know: (a) if the fabric disintegrates if it is cut; (b) what tool is best used to cut this fabric; (c) whether a small piece of this fabric can be shaped to fit around the bulb.
Hope this helps.
Yours faithfully,
Spook
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