[rotorwrench]

The old Loctite green #35 and the newer #680 are the same thing. This is as heavy duty as Loctite gets. It's called out for a lot of bearings installed in the main rotor gearboxes on the helicopters but it is a b!tch to get it apart sometimes. Heat it up past water boiling temp and cool it for a few temp change cycles and it will let go. I've been using the stuff for years and it is the only thing that works for loose fit stuff.