[Red Badger]

650°F

http://www.ce.com.vn/loctite-2620-ultra-high-temperature/

[GingisK]

You left out the OTHER END: Optimum temperature range is range -65ºF to 650ºF. Space vehicles must handle down to -250F in a vacuum with the temperatures rapidly changing from the high end to the low end. Most plastics, of which LockTite is a member, out gas in a vacuum until they are all gone.