I used high temp red loctite (272 I believe) on my Brison 2.4 with BCM wraparound muffler. Had about two hours of run time when a dorked landing spread the gear and cracked the pipes. Upon trying to remove the muffler, I had to use a heat gun and a micro butane torch to get the muffler bolts out. The regular red loctite(262) is good only to 300 degrees. The 272 is good to 450 degrees.

Marty