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 Post subject: Loctite Threadlocker
PostPosted: Tue Apr 14, 2015 7:13 pm 
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Joined: Fri Oct 28, 2011 3:25 am
Posts: 1006
Location: United Kingdom of Great Britain and Northern Ireland
This stuff strikes me as a bit too strong for bicycle applications. Loctite 241 seems a better choice, but I only had 243 available.

I have used some 243 on M6 Grade 5 Aerospace Titanium 6AL4V bolts with conical/taper heads, and now I am worried the bolt heads might shear on removal. We are talking M6 fixings for disc brakes into aluminium.

I am hoping these titanium bolts might actually be stronger than hi-ten steel bolts and that I have nothing to worry about.

Anyone had trouble removing fixings with Loctite 243 applied?

Any comments?

Thanks.


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 Post subject: Loctite Threadlocker
Posted: Tue Apr 14, 2015 7:13 pm 


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 Post subject: Re: Loctite Threadlocker
PostPosted: Tue Apr 14, 2015 7:20 pm 
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Joined: Wed Feb 22, 2012 6:56 pm
Posts: 15
LBS mechanic trick: heat blower, it breaks loctite's glue.


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 Post subject: Re: Loctite Threadlocker
PostPosted: Tue Apr 14, 2015 8:14 pm 
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Joined: Fri May 25, 2007 6:43 pm
Posts: 2230
That's really not an LBS trick........... iirc it's on the loctite instructions for use!

Another trick is to touch the tip of a soldering iron to the bolt head.


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 Post subject: Re: Loctite Threadlocker
PostPosted: Tue Apr 14, 2015 8:24 pm 
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Joined: Tue Aug 12, 2014 3:50 pm
Posts: 276
Location: FIN
I do always use 243, never had any issues, BUT under some conditions : I apply it on "not so degreased" surface, I unscrew every single bolt/ nut at least every 3 months, usually apply lower torque than on "dry" thread.

If you plan to leave locked thread for longer than 6 months, live/ irde in humid/salty environment , use "light" Permatex/ Loctite (222(?) ).

Heat blower…. do you know TzG ( glass transition temperature ) for CF frame ? ;) I would be VERY carefull.

_________________
Go to Heaven for the climate, Hell for the company.
Mark Twain


I can be wrong, and have plenty of examples for that ;)


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 Post subject: Re: Loctite Threadlocker
PostPosted: Tue Apr 14, 2015 10:45 pm 
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Joined: Fri Oct 28, 2011 3:25 am
Posts: 1006
Location: United Kingdom of Great Britain and Northern Ireland
mattr wrote:
Another trick is to touch the tip of a soldering iron to the bolt head.


I like it.


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