I was wondering, do you need to use rocksett when installing a muzzle brake? Or would just blue lock tite suffice? I dont plan on having any full-auto fire but I'd like to make sure I install it properly anyway. *Will be used for QD suppressor use.

Also, do you need to put anything on the gas block? I've heard of people using rocksett and also others using grease?

Thanks

You don't need to use any of that for a simple muzzle device - the washer and torque will hold it on just fine. No loctite, no rocksett.

Only persons installing muzzle devices which function as quick-detach mounts for sound suppressors generally bother with something like rocksett.

I've read to use spark plug anti-seize, but I would think that loctight would be overkill.  Gas blocks dont need any kind of sealant.

Forgot to mention that it will be used for QD suppressor use.

Don't use Loctite on the muzzle brake!  Most muzzle brakes use a crush washer.  All you need to do is make sure they go through a minimum of 90* (1/4 turn) rotation while crushing the washer before they index.  
Do yourself a favor and buy some extra crush washers to piggyback with shipping on your muzzle brake order.  It always good to have spares.  
Also, make sure to clamp the barrel in a vise during installation.  A couple of scrap pieces of 2X4 in the jaws of a bench vise will work just fine.  

As far as the gas block, I just use a drop of blue Loctite (some people use red) and then torque to 30 in/lbs.  Never had one come loose yet.  
You can also use Rocksett, though that can be a pain in the ass if you ever need to take off your gas block.  Don't use grease; ever.  
Oh, and don't buy an aluminum gas block, only steel.  

Here's a good thread to help you out -
http://www.ar15.com/forums/t_3_4/226782_Assemble_your_own_LOWER__UPPER__FREE_FLOAT__TRIGGER__GAS_BLOCK___Step_by_step_instructions_.html

In that case, go with your manufacturer's recommendations. Some do indeed recommend or even require rocksett.

You don't need anything on your muzzle device, use the crush washer and tighten it down is all you need to use.

Do not use a crush washer for a QD suppressor mount, it may affect concentricity.
If it requires timing, use shims.

I don't see anywhere in this thread we were talking about a QD Suppressor?  He was asking about a muzzle brake.

OP later mentioned it was for a QD brake.

This.  It will be a QD for suppressor.  Each suppressor mount has its own installation instructions that will include whether and what type of tread locker, washers or other things need to be done to securely mount the QD suppressor base/brake.  Follow them and all will be well.

Well that is in important thing to mention!

This is important, every silencer manufacturer warns against using crush washers on their quick detach mounts. Everyone of them also suggest using Rocksett when installing the device.

I use Rocksett on all my QD muzzle brakes and flash hiders that will be used with a suppressor.  I do use it for the gas block screws too. It really works better than anything else. Blue loctite will come off and I will never use it again on a brake or flash hider for a suppressor. Buy a bottle of the  rocksett stuff its well worth it


One thing you need to be aware of is Rocksett can be a pain to remove. Rocksett has around the same strength as blue loctite but when you try to remove a brake with it you'll swear its red loctite. The good thing is Rocksett is water solvable.  I found placing the barrel and brake in boiling water for 15-20 mins helps loosen the bond in removal.  

Use only Shims for muzzle brakes or flash hiders that will be used for a suppressor. If you use a crush washer you might destroy your suppressor because of misalignment.