Loctite and similar materials

G'day.

On some threads I have noticed that 'Loctite' is used as a generic description for a bonding material/ thread locker or similar uses.

The word 'Loctite' appears to have slipped into general terminology, but without mentioning the type/grade it is as useless as saying glue part A to part B without describing the materials or type of adhesive.

Loctite works well, so do many of it's competing products - if used correctly for the application. There are a vast range of substances tailored to specific applications.

When such products are mentioned, it would be useful if the specific variety was identified and even more interesting - Why was it selected?

(I have nothing to do with Loctite btw)

* Danny M *

Hi, i use a bearing and shafts grade of Bondloc, comes in a black tube, a UK variety, it's reasonably priced and i've noticed it's "glupy-er" than the regular variety of loctite.

My original reason for buying was simply a buy 1 get 1 free deal, i suppose loctite would do their own variety of my selected grade but i've stuck with that ever since. 

Michael W

Edited By Michael Walters on 04/07/2016 11:45:22

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Good luck with this, Danny ... I have been trying for years, with little success.

MichaelG.

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P.S. ... Now that Henkel is using 'Loctite' as a brand-name for a wide variety of products [not just the 'anærobics'], this is more important than ever. 

Edited By Michael Gilligan on 04/07/2016 12:21:06

Just for emphasis : **LINK**

Yes ... There really is a range of Loctite lubricants

Oxymoron or just moronic marketing ?

MichaelG.

I think it is important to use the correct product for what you are trying to achieve.

e.g. A product to retain nuts is not the ideal product to retain a component on a shaft or a bearing in a housing. Some are high strength and not designed for easy removal where others do allow the bond to be broken with out too much effort.

On top of that there is a temperature consideration as some are suitable for high temps where others will fail.

Good place to start if considering a Loctite product **LINK**

Well most of them will fail under heat. You can even use that to your advantage.

Michael W

I think Bob was refering to using a suitable product to restist the temperature that the parts are likely to reach, such as 648 if sticking a liner into a steam engine cylinder rather than a lower spec flavour that may fail when you don't want it to.

Other manufacturers' products are available

Rod

Loctite did produce a little booklet that gave info on what grade to use etc. Then they were taken over and even their web site taken down and replaced with near zero information. Looking at the site now things have improved.

Rather a long time ago I designed something at work that needed putting together with a bit of use of a screw driver and soldering plus gluing. As they didn't know who to put the job out to I finished up making them up at home - on piece work, the pay was fantastic. These involved the use of 2 grades of loctite super glue. I suspect all that has happened in this area is that availability is a lot more widespread. My impression was that they used to be a purely industrial product. I've also used adhesives of EVO that are only available to industry. CIBA too so it's not that unusual.

I'm glad the super glues are easy to get now. I usually have a bottle about. It lasts a long time providing that the excess is sucked back into the bottle and none cures on the tip of the applicator.

John

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Very true **LINK**

MichaelG.

Although this cross-reference does not appear to be exhaustive, it's a useful start.

... Can anyone find a better one ?

MichaelG.

I found at least 16 manufacturers on Google. for Loctite lots of info.

Ian S C

For fitting the aluminium plug in the cool end of the displacer for Stirling Engines I have been using the high temperature, high strength grade of "Loxeal", can't remember the number, I have also used it to attach a flange on the hot cap of a number of motors.

Ian S C

And herein lies the reason many posters just say "Loctite" and don't quote the number. The tube is out in the shed and they can't remember the exact product number. Really, it's up to the enquirer to look up the product data and choose exactly which grade of product suits their particular need.

My Downham milling machine has a 20mm collet installed and I make all my tools with a 20mm shanks I have a 12mm end mill Loctited (Retaining Compound 638) in with a thou or two clearance and when I want to replace it I just heat it up with butane torch pull out the old cutter wait for it to cool then Loctite in the new. it is amazing stuff use it to retain all my clock wheels never had a problem.

Bought half a dozen cap screws on Friday, and they gave me six 2 mil tubes of Vibra Tite 12102 Blue medium strength removable thread lock for 1/4" to 3/8" threads, the packing says it competes with Loctite 242.

Ian S C

Just to add to the confusion, Loctite themselves have changed the numbers over the years.

John

Loctite-spotters might be interested in this ebay listing:

http://www.ebay.co.uk/itm/Loctite-303-Gluing-Robot-glue-dispenser-and-UV-Cure-chamber-Curing-cabinet-/291807092335

MichaelG.

**LINK**

Edited By Michael Gilligan on 30/07/2016 06:40:05

Just about all you want to know is on the Henkel web site:

http://na.henkel-adhesives.com/loctite-industrial-assembly-repair-13281.htm

Pete

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Danny,

I am guilty of dragging this thread off-topic

For my pennance I have quoted the very clear, and important, message from your opening post.

MichaelG.