Question about Loctite

G

GPBob

Joined
Oct 8, 2012
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29
What type of Loctite should I use on my Umnumzaan? Could I get away with using none after a dismantle and reassemble?
 
If you want to use loctite use Loctite 222(purple). I use blue or purple loctite 90% of the time. You don't have to use one though.
 
TheAndrew said:
If you want to use loctite use Loctite 222(purple). I use blue or purple loctite 90% of the time. You don't have to use one though.
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I have the new pivot on my Umnumzaan and you're saying I don't need to use loctite upon reassembly.
 
You still have to use loctite on your Umnumzaan even though you have the new style pivot. CRK reccommends using loctite 222ms.
 
You don't have to use it but the pivot will loosen up if you don't use something. The other option is teflon tape, I have used both as well as nothing and my Umnumzaan didn't burst into flames or make insinuating phone calls to CRK behind my back or anything so I'm sure you'll be fine. :p:thumbup:
 
Haze said:
You don't have to use it but the pivot will loosen up if you don't use something. The other option is teflon tape, I have used both as well as nothing and my Umnumzaan didn't burst into flames or make insinuating phone calls to CRK behind my back or anything so I'm sure you'll be fine. :p:thumbup:
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I used mine for a few months without loctite, and it didn't loosen up. CRK uses nice thin threads with a high threads/inch count and short lead compared to other companies, so it doesn't back out the first opening like, for instance, a Benchmade without loctite does. YMMV
 
Just use teflon tape. You don't need to wait for it to dry and you can get a roll of it that will last a lifetime for like $2
 
kreole said:
I used mine for a few months without loctite, and it didn't loosen up. CRK uses nice thin threads with a high threads/inch count and short lead compared to other companies, so it doesn't back out the first opening like, for instance, a Benchmade without loctite does. YMMV
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This, sort of. :wink: My experience has been that the pivot eventually loosens but you might get Kreole's results rather than mine. No harm trying. :) :thumbup:

mongomondo said:
Just use teflon tape. You don't need to wait for it to dry and you can get a roll of it that will last a lifetime for like $2
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I haven't had luck with the teflon tape, but here again, no harm trying. :thumbup:

CRK recommends the purple Loctite which is hard to find (I have only found it at Brownells). I think their concern was that the Delrin tool for the old pivot could break. If you have the new pivot, and therefore uses a metal tool, there is probably no harm using the much easier to find blue Loctite, though that might be worth confirming with CRK.
 
JNewell said:
CRK recommends the purple Loctite which is hard to find (I have only found it at Brownells)
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You got that right. I've been trying to find it locally to save on shipping. I should have just ordered it online sine I've already spent more on gas! I got a takedown kit from CRK and I got a tiny bottle, I'm just not sure how long that will last ( I plan on using it on my other knives also).
 
calypso699 said:
You got that right. I've been trying to find it locally to save on shipping. I should have just ordered it online sine I've already spent more on gas! I got a takedown kit from CRK and I got a tiny bottle, I'm just not sure how long that will last ( I plan on using it on my other knives also).
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As long as it doesn't cure in the tube/"bottle" after you open it, if you use it correctly, that little tube is somewhere between a five year and lifetime supply. :p
 
JNewell said:
As long as it doesn't cure in the tube/"bottle" after you open it, if you use it correctly, that little tube is somewhere between a five year and lifetime supply. :p
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Haha I sure hope so. Good call n it drying out. Maybe I'll wrap the cap in bue painters tape while it's in the toolbox.
 
Loctite cures in the absence of air, having an opened bottle won't affect it at all.

Bruceter
 
I don't have any CRKs yet, but I'm planning on getting one soon, and I've been poking around on the forums quite a bit trying to learn more about their products. This is probably a naive question, but why does the Umnumzaan need locktite on its pivot screw while the Sebenza 21 doesn't? I.e., what is it about the bushing that the sebenza uses that obviates locktite while the non-bushing pivot of the Umnumzaan requires it? Does the bushing allow one to crank down the pivot screws of the Sebenza without anything binding the blade?
 
That is correct, the tolerances on the Sebenza are such that the design allows for the screws to bottom out and that's how it works.
 
You guys that are looking for the purple lock tite, do you have the big nut and bolt supply houses in your area? I found it at high strenght bolt in my area. The smallest bottle they had was a .34 fl bottle, more than a life time, but was readily available.
 
franzdom said:
the tolerances on the Sebenza are such that the design allows for the screws to bottom out and that's how it works.
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Just to clarify: The pivot screw does not bottom out, the bushing just allows you to torque the screw sufficiently to prevent it from backing out under normal use. The tolerances of the bushing and washer system establish the freedom of movement for the blade, the pivot screw and cap simply secures this assembly.
 
BobP63 said:
Just to clarify: The pivot screw does not bottom out, the bushing just allows you to torque the screw sufficiently to prevent it from backing out under normal use. The tolerances of the bushing and washer system establish the freedom of movement for the blade, the pivot screw and cap simply secures this assembly.
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Bob this is a correct .
 
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