Muzzle device adhesive

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Thread: Muzzle device adhesive

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    Member 300blkout's Avatar
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    Muzzle device adhesive

    Instead of Rocksett, would some red loctite from my local hardware store work for attaching a flash hider? Thanks for your input

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    STL
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    no, heat will kill it

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    Junior Member Shortdustoff's Avatar
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    Quote Originally Posted by STL View Post
    no, heat will kill it
    I would have thought that would be fine since it is used for heat applications like headers etc.

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    Only good to 500F (if you are lucky) so Rockset is better for firearm applications where extreme heat is involved.
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    Even with red Loctite, there are several different products... 2620 is their ultra high temperature product that has a temperature resistance up to 650F. There are so many factors that come into play with barrel temperature and what it might be at the threads of a flash suppressor, but Rock Island Arsenal did some studies in the 70s that showed barrel temperature to reach about 650F when 280 rounds were fired at a rate of one round every 6 seconds measured close to the breach. At that rate of fire, it was under 400F beyond 14 inches from the breach. Again, so many factors to contend with, but I've used 2620 and had no problems on a fairly slow-fire precision rifle even with a suppressor. Although I like Rocksett for many purposes, it has not held up well under similar circumstances...
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    Quote Originally Posted by Hoefner View Post
    Even with red Loctite, there are several different products... 2620 is their ultra high temperature product that has a temperature resistance up to 650F. There are so many factors that come into play with barrel temperature and what it might be at the threads of a flash suppressor, but Rock Island Arsenal did some studies in the 70s that showed barrel temperature to reach about 650F when 280 rounds were fired at a rate of one round every 6 seconds measured close to the breach. At that rate of fire, it was under 400F beyond 14 inches from the breach. Again, so many factors to contend with, but I've used 2620 and had no problems on a fairly slow-fire precision rifle even with a suppressor. Although I like Rocksett for many purposes, it has not held up well under similar circumstances...
    Could you expound on the Rocksett and " not held up well under similar circumstances..."?
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    Rocksett and proper torque will not come off. That is what we recommend to everyone and use personally.
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    Incredible temperature resistance, -350 degrees F up to 2,015 degrees F. <------ That's why rocksett is used and not Loctite. You'll destroy your barrel before it comes off.

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    Quote Originally Posted by HK SD9 Tactical View Post
    Could you expound on the Rocksett and " not held up well under similar circumstances..."?
    Interesting notes regarding Rocksett... thanks for the information.

    Here's the n=1 situation... Shooting 6.5 Creedmoor with a buddy--I was using an RPR with a Gemtech Quicksand suppressor and he had Savage Saber with Surefire SOCOM300-SPS suppressor. I used 2620 and he had put his flash hider/muzzle brake on with Rocksett. After about a hundred rounds, the brake on his rifle loose enough to be turned by hand. Perhaps it hadn't been properly torqued...

    As I mentioned, I like Rocksett and have never had a problem with it and was unaware that it had temperature resistance between -350 to 2,015 °F. I've used it on bolts on my GSX1000 and have been able to remove them, so I'm curious about the comment that "You'll destroy your barrel before it comes off." Really?
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    Quote Originally Posted by Hoefner View Post
    it hadn't been properly torqued...
    When properly applied and the muzzle device installed, Rocksett will not fail. It requires a tremendous amount of sheer force to break the bond. On Mk17 barrels, it requires the use of a 3' cheater bar after soaking in 200° water for 2 hours to remove the ECP hider. The ECP hiders installed on commercial barrels offered by FN as a replacement such as the 13" CQC and 20" LB variants do not have thread locking compound present.
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