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scottproonly
 Post subject: Which loctite?
PostPosted: Fri Jan 19, 2018 4:39 am 
Retro Guru

Joined: Sun Oct 26, 2014 8:34 am
Posts: 558
Hi all. Can someone please tell me which loctite is best for bicycle fasteners?
Thanks
Kes
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dyna-ti
 Post subject: Re: Which loctite?
PostPosted: Fri Jan 19, 2018 7:17 am 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider
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Joined: Sun May 25, 2008 11:03 am
Posts: 18961
Location: Sunny Glasgow
Comes in red, blue and green.

Red is the strongest, and green the lightest. Blue is medium and is the one the bike industry appears to favour.

https://www.ebay.co.uk/itm/Threadlocker ... .l4275.c10
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gradeAfailure
 Post subject: Re:
PostPosted: Fri Jan 19, 2018 8:02 am 
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Joined: Sun Jul 09, 2006 11:07 pm
Posts: 1751
Location: muddy fields, usually
Errr, if you're talking about genuine Loctite, don't use green! It's a bearing retaining compound and is very strong.

The most common ones are:

Loctite 222 (pink) - low strength threadlocker
Loctite 243 (blue) - medium strength threadlocker
Loctite 638 (green) - high strength bearing retaining compound

222 is pretty weak and not worth bothering with, 243 is perfect for bike use, and 638 is what you'd use to fit headset cups into a loose/ovalised head tube (for example).
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scottproonly
 Post subject: Re:
PostPosted: Fri Jan 19, 2018 8:09 am 
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Joined: Sun Oct 26, 2014 8:34 am
Posts: 558
Nice one cheers
Kes
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integerspin
 Post subject: Re: Which loctite?
PostPosted: Fri Jan 19, 2018 6:15 pm 
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Joined: Fri Jan 13, 2012 2:28 am
Posts: 1224
Location: Near Gatwick
I have 222, 271, 270, 290 and 638.
I think I have only have only used 222 on push bikes.
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