Does anyone know a source for the sticky heat foil sometimes used under bulbs on a Lionel body.
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They sell it at hardware stores, online, and at heat and cooling supply stores. I bought a roll when I was working on my house.
Auto parts stores usually carry it as well. It will be labeled "chrome tape".
HVAC Foil tape, Foil Duct Tape. The more expensive stuff is better, thicker, more flexible, and has higher strength adhesive backing.
I'd second HVAC foil tape. It can handle about anything, heat, cold, moisture, etc..It stays stuck, holds shapes, yet removes well. An HVAC supply house might be cheaper.
I also second the foil tape - but I'd get the thicker stuff, which should be a somewhat better heat shield. Its easier to use - the thin stuff wants to wrinkle and tear. It also works great on ducts (maybe ducks too, I don't have any of those to try it on...) - vastly superior to duct tape on ducts.
I have a big roll of the 2.5" foil duct tape, that stuff adheres like iron! Super expensive, but I got the roll when the HVAC people were installing a new pair of heatpumps, I talked them out of a roll of the duct tape. 
Why not glue a piece of heavy duty aluminum foil on with 5 min epoxy?
Charlie
I use it inside lighted passenger cars for the reflectivity
Brendan
