I have used red loctite on 4 different Silencerco muzzle brakes and 3 prong flash hiders that are also suppressor mounts, after having the brake begin to unscrew with the suppressor when removing it. Also on the adapters that screw into the back of the suppressor itself, for the same reason.
I have gently heated the brake (or adapter) with a plumber's torch to soften the Red Loctite to remove them. I did not use anything to monitor the temp, but don't think I got anywhere near 550 degrees.
Edited to add: I would leave the brake on. That factory Tikka radial brake is not that obnoxious as brakes go, and I enjoy being able to see my bullets impact.