I don't have any experience with the betalink, but 3M VHB is a really good adhesive for this application. I worked with a company that was installing antennas transportation containers and we ultimately selected vhb as our fastener. It is used all over the place in transportation, including to hold skin panels on ambulances, busses, etc.
I wouldn't be overly concerned with it at higher temperatures, the stuff is an epoxy that cures in warmer temperatures. The warmer it gets, the better bond you will get. Just make sure you select the version that best suits your coldest extremes as this is where it can weaken. Also pay attention to any surface prep instructions you get, prep is the key to a good bond with vhb.
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