Loctite, which color?

[Barang]

There's white, blue and red. Last time my wife and I were at the range, her MK25 grips' screw came undone. What color is the correct one to use?

[dkthree]

Blue

[ZER0_]

I would use the blue loctite. Do not use the red loctite.

[checkenbach]

Blue. Red is for stud and bearing mount(permanent), never heard of white. There are many more colors depending on application.

[Barang]

Great! Thank you guys.

[Jasen G]

If you just want the grip to stay use blue. If you are most likely never going to remove it, use red.


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[CK_32]

Always run blue.


I never advise to use red. Nothing is perminant.

[Barang]

I like changing grips once in a while so I'll use blue. That red is a disaster if I used it without knowing its permanency. Whoa!

[Jasen G]

Always run blue or green.


I never advise to use red. Nothing is perminant.

Death and Taxes.
-Ben Franklin


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[nahpungnome]

Blue like others have said. There are some applications for Red though, such as the CGW adjustable sear and the pre/over travel screws for SA triggers.

[S0M1L9S]

rubber washer?

[nahpungnome]

rubber washer?

I use #60 o rings on my CZs, they still loosen up, just not as fast. I've even tried plumbers tape, but the o rings works a bit better.

[yelonutz]

Just so you all know, blue is considered permanent if the screw diameter is less than 1/4". Green is wicking, after parts are assembled. Red is considered permanent for all bolts but will release with heat.

NUTZ

[Reelemup]

Locking washer?

[BigFatGuy]

Purple for small screws.
Blue for general use
Red if you don't mind using a torch to remove (shotgun mag tube basically)
Green if you want to adjust a screw and then add loctite