Pat, I have a bottle of Rocksett.  I tried it; don't like it.  Been sitting there a few years now.

You are welcome to have mine, free.  I'll even mail it to you.

Send me an email if you want it.

Mounting procedure for the OPS INC muzzle brake:

"The crowned end of the barrel should be approximately flush with the rear of the first muzzle brake chamber. The thread length is approximately .6" long and the shoulder on the barrel must be machined 90 degrees to the axis of the bore. After the thread is machined on the barrel, and while the barrel is still in the lathe, screw the brake on the thread to check for fit. The NARROW WEB on the brake is the TOP of the brake. You can use a crescent type adjustable wrench tightly adjusted to the larger web, or a 3/8 diameter rod inserted through the front port of the brake when tightening the brake to the barrel. The brake should be tight on the barrel to eliminate any chance of the brake causing vibration to the barrel. The rear of the brake should have firm contact with the barrel at the thread shoulder area, this is best acquired if you relieve the thread at the shoulder area. Be sure the threads are oiled to eliminate any chance of galling. If the brake is screwed on and off the barrel several times during the fitting procedure, the threads will be burnished and a tight fit is achieved.

It is recommended that the brake be permanently mounted using red loctite. The baffle has a slightly inclined angle to keep the barrel neutral with no upward or downward movement when shooting. The NARROW TOP WEB is a result of this design feature. It is imperative that the rear shoulder of the brake firmly contacts the shoulder of the barrel."

From:
http://opsinc.us/install.php.html

Red emphasis above added by me.

Ops, Inc. could have changed the written instructions with their brakes.  Ops, Inc, is one of the few smaller diameter brakes that effectively work.  Mating and timing, with proper torque, to the barrel are critical.

Rocksett just does not hold as well as 271, 272, or 2620 Loctite, all of which are red.  271 is the most common red Loctite, and can be purchased at most hardware stores for under $5 (Home Depot, Lowes, even Wal-Mart, and most auto parts stores).  271 must be heated to 350F degrees, before mechanical force to break it free.  We have never had a movement with 271 Loctite, and it is the lowest temp 'red' Loctite.  I have broken Rocksett bonds with my hands (no tools) and the metal cold.  Rocksett also does not completely cure for a very long time deep inside.  It has a much longer working time than red Loctite.  Rocksett has its place in industry; we have not found it useful in our AR15 high accuracy uppers; the stuff breaks down easily.  The last time I checked, the Navy, USMC, and AMU shooting teams do not use Rocksett; they use various types of Loctite.