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Mar 25th, 2012
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Loctite - Good or bad #7009485
12/24/17 04:29 AM
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Texas Dan Offline OP
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I've never been one to use Loctite on scope screws for the simple reason that nothing is permanent. Something happens and you find yourself needing to remove or replace your scope. I was reminded of it this past weekend when a friend encountered a loose scope base on his rifle. Whoever owned the scope before him must have used Loctite on the ring screws because they wouldn't break loose. Fortunately, the base was the Leupold type with a dovetail base on the front ring and double screw base (which some despise) on the rear. This made it possible to remove the scope with the rings still attached.

I understand there are remedies for screws that have been seized with Loctite, and that other blends of Loctite are available that don't create a more permanent setup. Not sure the potential hassle after using Loctite warrants the benefits.


Dan,

Spring, Texas
Re: Loctite - Good or bad [Re: Texas Dan] #7009494
12/24/17 04:34 AM
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Use blue Loctite and itís not an issue.

Re: Loctite - Good or bad [Re: Shaner] #7009496
12/24/17 04:36 AM
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Originally Posted By: Shaner
Use blue Loctite and itís not an issue.


Does this offer an benefit over not using any thread locker?


Dan,

Spring, Texas
Re: Loctite - Good or bad [Re: Texas Dan] #7009497
12/24/17 04:36 AM
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blue loctite good, red bad for most things

Re: Loctite - Good or bad [Re: Texas Dan] #7009499
12/24/17 04:40 AM
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Originally Posted By: Texas Dan
Originally Posted By: Shaner
Use blue Loctite and itís not an issue.


Does this offer an benefit over not using any thread locker?

yes, blue is removable with extra force, red needs heat to remove

Re: Loctite - Good or bad [Re: Texas Dan] #7009517
12/24/17 04:57 AM
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Loctite purple is a better alternative to blue---if you can find it. But blue is definitely a better choice than red. Don't use red.




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Re: Loctite - Good or bad [Re: Texas Dan] #7009590
12/24/17 07:56 AM
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Beware of green also, it is a wicking formula that will seep into threads already tightened which is nice but it is almost as strong as red and usually requires heat to loosen. It is also hard to find.

Re: Loctite - Good or bad [Re: Texas Dan] #7009659
12/24/17 01:15 PM
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Loctite 222 purple is designed for fasteners 1/4" and under, what I use on base & ring screws.
Blue is for 1/4" - 3/4" fasteners, you can use it on base & rings, but, if you have to remove & replace a fastener as small as most base & ring screws the cured residue remaining in the threads will make it near impossible to torque accurately unless residue is removed.

Yeah I know, it's another one of those my grandfather & father and 116 people I know have always used blue and never had a problem kinda deals.
Purple is plenty strong for the application & specifically developed & designed for small / tiny fasteners 1/4" or less.

Re: Loctite - Good or bad [Re: Texas Dan] #7009664
12/24/17 01:26 PM
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Here's another question for those most familiar with Loctite.

Should a screw be tightened as hard when using Loctite as it would if not using it?


Dan,

Spring, Texas
Re: Loctite - Good or bad [Re: Texas Dan] #7009680
12/24/17 01:50 PM
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Ive never used it on anything. Havenít had a problem. The only place I would consider using it would be for base screws.

Re: Loctite - Good or bad [Re: Texas Dan] #7009687
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Loctite reccomends reducing toque by 20%, which is I'm sure a standard / general answer.
When I tested the friction factor & calculated a K value for purple with my specific base screws for my rem LTR I came up with an actual 12.525% less.

Re: Loctite - Good or bad [Re: Texas Dan] #7009696
12/24/17 02:07 PM
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It might be the PO was just a gorilla with a good gunsmithing screwdriver and didn't use locktite.

Loctite is good when used properly but can get really bad real fast when used improperly.


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Re: Loctite - Good or bad [Re: 68A] #7009723
12/24/17 02:27 PM
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Originally Posted By: 68A
Ive never used it on anything. Haven’t had a problem. The only place I would consider using it would be for base screws.


I never use it anymore. With todays quality mounting systems, I don't believe its necessary. But this just me. Torque tool is your friend.


"I ain't here for a long time, I'm here for a good time"
King George Strait


Re: Loctite - Good or bad [Re: RiverRider] #7009733
12/24/17 02:35 PM
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Originally Posted By: RiverRider
Loctite purple is a better alternative to blue---if you can find it. But blue is definitely a better choice than red. Don't use red.


I use purple when mounting bases to the action. I will use them on rings that only have one screw on each side.


Scott
Re: Loctite - Good or bad [Re: Texas Dan] #7009735
12/24/17 02:37 PM
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purple is also better for aluminum, such as AR receivers. About the only place I use it is large caliber scope mounts, big heavy scopes (like night vision) and when building AR receivers I always do an upgrade adding a set screw to take out the trigger creep...do not want this screw to move or it will cause problems!

Re: Loctite - Good or bad [Re: bronco71] #7009738
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Originally Posted By: bronco71
purple is also better for aluminum, such as AR receivers. About the only place I use it is large caliber scope mounts, big heavy scopes (like night vision) and when building AR receivers I always do an upgrade adding a set screw to take out the trigger creep...do not want this screw to move or it will cause problems!


good info here


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Re: Loctite - Good or bad [Re: Vern1] #7009813
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Originally Posted By: Vern1


Loctite is good when used properly but can get really bad real fast when used improperly.


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Re: Loctite - Good or bad [Re: Vern1] #7009861
12/24/17 03:58 PM
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Originally Posted By: Vern1
Loctite is good when used properly but can get really bad real fast when used improperly.


True! I keep a bottle of "red" in the garage for use on some engines, it somehow ended up on my gun bench in the house. Since Loctite bottles are all colored red I thought it was the blue that I normally use there and used it on a trigger set screw hammer When I took it to the farm to test the screw was in too far and needed to be adjusted..NOT HAPPENING! bang After getting back home with it I had to tear it down and use a small pencil torch to heat and remove it....

Re: Loctite - Good or bad [Re: Buzzsaw] #7009863
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Originally Posted By: Buzzsaw
Originally Posted By: bronco71
purple is also better for aluminum, such as AR receivers. About the only place I use it is large caliber scope mounts, big heavy scopes (like night vision) and when building AR receivers I always do an upgrade adding a set screw to take out the trigger creep...do not want this screw to move or it will cause problems!


good info here


That's what I was thinking.

I learn something new every day.


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Re: Loctite - Good or bad [Re: Texas Dan] #7009916
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Skylar says no just torque to proper inch lbs.

Re: Loctite - Good or bad [Re: Texas Dan] #7009924
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Unnecessary and it voids some manufacturers warranty. Torque to the manufacturers specs and you'll be fine. Trust in their instructions. Torque specs vary by manufacturer due to tolerences and materials but they know how snug their rings need to be. I've never quite understood the whole loctite thing. There's probably thousands of screws used in various pieces of equipment and moving parts that we all own. Few to none need loctite, I don't see why scope rings should.

Last edited by TxHunter80; 12/24/17 04:55 PM.
Re: Loctite - Good or bad [Re: Texas Dan] #7010010
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I use blue loctite or nail polish on a lot of things, scope rings and bases included.


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Re: Loctite - Good or bad [Re: Texas Dan] #7010051
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I like the insurance of using Loctite Blue. Maybe I need it and maybe I don't but I use it.

Re: Loctite - Good or bad [Re: TxHunter80] #7010063
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Originally Posted By: TxHunter80
Unnecessary and it voids some manufacturers warranty. Torque to the manufacturers specs and you'll be fine. Trust in their instructions. Torque specs vary by manufacturer due to tolerences and materials but they know how snug their rings need to be. I've never quite understood the whole loctite thing. There's probably thousands of screws used in various pieces of equipment and moving parts that we all own. Few to none need loctite, I don't see why scope rings should.



Warranty policies may be what they are, but look around at how many guys find that their mounting hardware has loosened after noticing a POI change. If you choose to believe that if it hasn't happened to you it therefore just doesn't happen, you may lead a charmed life all the way to the end...or NOT.

How would you feel about flying in an airplane that doesn't have a single drop of loctite on a single fastener, anywhere? I know how I feel about it. And now that I think about it...I can't count the number of times I've found hardware on the floor around the house and in the garage. That stuff comes from somewhere...and I'm left to wonder what's going to break down next. And believe it or not, many manufacturers of various products implore the use of thread lockers on fasteners.




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Re: Loctite - Good or bad [Re: Buzzsaw] #7010076
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Originally Posted By: Buzzsaw
Originally Posted By: 68A
Ive never used it on anything. Haven’t had a problem. The only place I would consider using it would be for base screws.


I never use it anymore. With todays quality mounting systems, I don't believe its necessary. But this just me. Torque tool is your friend.

Same here.


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