The silicone based tape will be resistant to heat. It's so good you can use it to stop an exhaust
leak. Or even wrap your entire exhaust
in it to cut down on heat...
I've bought the originial rescue tape on ebay for pretty good prices, and I've had atleast 3 other generic brands from various stores. Except for one, they are all virtually identical to the rescue-tape brand. The one that's not is not even remotely close to the quality of the others. It has little stretch and tears easily. I can't remember what brand it was but I think I got it at harbor freight.
Note: it doesn't stick to itself when its wet.