[TheOtherLeft]

I'm trying to get my head around the plethora of Loctite choices there are
Threadlocker

... all I want to do is seal my diff drain plug and various other nuts/bolts.

The website has 20 different variations of threadlocker. Which one's the most suitable?

Also there are threadsealers as well.
Threadsealer

As I am doing my diff plugs, do I want a sealer or a locking solution? Or should I just use plumbers thread tape instead?

[Ben_Sierra]

Don't loctitie it! Those bastards are hard enough to get out anyway...

You shouldn't need to put anything on there, just stick it straight in...

[royce]

yep, nothing extra needed, you could put a small amount of thread tape on the drain bung but its thread profile is designed to be sealing anyway so its jsut more stuff to make them hard to remove

[Ben_Sierra]

If anything put some sort of anti-sieze stuff or teflon tape to make it easier to get out next time!

[atari4x4]

do your diff plugs leak, do they come loose?

[TheOtherLeft]

atari4x4 wrote:

do your diff plugs leak, do they come loose?

Nope and nope. In the service manual it says to use Suzuki Sealant, whatever that is.

[atari4x4]

i'd say that it would be some sort of silicone sealant, rather than a thread lock type of product, personally i wouldn't bother.

[BlueSuzy]

loctite have a thread sealant. We use it at work all the time for water components. Easy to undo also.

Do not use a loctite thread locker.

If it doesnt leak, dont fix it.

[Mugwui]

So while on topic, what are the differences between the different lockers and sealers? I have wondered this myself.
I ended up buying what seemed to be a general purpose thread locker for grip, but why so many?

[gregdixon]

There are diferent uses. For my Bike I use an anti vibe the blue threadlocker. Doesn't make it harder to undo just stops them from rattling out. Then there is the stud lock green one that i use to secure studs, that stuff makes it tuff to undo.

[TheOtherLeft]

atari4x4 wrote:

i'd say that it would be some sort of silicone sealant, rather than a thread lock type of product, personally i wouldn't bother.

Thanks for the tips.

I changed my rear diff oil. There was silicon looking stuff around the thread so I guess the mechanic used some sealant. Pity I didn't have any.

[inbits]

And to unbond loctite apply heat it also doesn't set unless the oxygen is removed ie in a thread

[losfer]

liquid threadtape is loctite 567

[weaves]

a quick rundown on loctite stuff for people who don't deal with it much

Loctite threadlockers, for retaining nuts and bolts
222 - purple in colour - low strength - for adjusting screws, counter sunk head bolts etc.
243 - blue in colour - medium strength - requires only hand tools to undo
263 (262) - red in colour - high strength - requires heat and a heavy hand to remove.
290 - green in colour - used on allready assembled items, extremely runny, medium to high strength - also used to fill pin holes in welds in fuel tanks.

Loctite thread sealants
577 - yellow paste - medium/high strength - for potable gas/water - locks thread to 17Nm
567 - white past - medium/high strength - for gas

loctite gasketing (silastic style uses)
515 - for steel to steel rigid flanges - for use with shims - reconmmended for coating and ru using gaskets to improve sealing
518 - for alloy/aluminium rigid flange to flange seal - recommended for use on iron, steel and aluminum flanges eg. aluminium gearbox and engine castings
510 - for rigid flange mounting on all metals - with high chemical resistance
5910/598 - Blackmaxx - black in colour - highly flexible - replacment for cork and paper cut gaskets on flanges and stamped sheet metal covers - for high vibration or high flex situations - oxgen sensor safe
587 - Bluemaxx - blue in colour - hot oil resistant - oxygen sensor safe - for use on all type of flanges where fleibility and high oil or water glycol resistance is required
596 - superflex red - high temperature - for use on ovens, boilers, exhaust stacks and ducting

this is a basic rundown on what the common automotive ones do.

cheer weaves

[TheOtherLeft]

weaves wrote:

a quick rundown on loctite stuff for people who don't deal with it much

Loctite thread sealants
577 - yellow paste - medium/high strength - for potable gas/water - locks thread to 17Nm
567 - white past - medium/high strength - for gas

cheer weaves

So which is recommended as a general purpose bolt sealant? I was about to buy some 567 as it what forumites recommend. The loctite website mentions that 567 is solvent resistent but no mention about it for 577.

[weaves]

The loctite catalogue doesn't mention what to use for a drain plug on a diff or car engine, but it does for a bike, it says "loctite 567 master pipe sealant - timing plugs and all drain plugs (oil, primary, and transmission)

[ajsr]

I used to use three bond grey silicone sealer on all my race bikes for years.
you can use it for gasketless seals on anything diffs fuels etc
I also used to smear a little on all bolts and nuts on the bike as it was going back togther instead of locktite as its easier to undo and nothing ever rattles out with this stuff on it and the threads never corrode.
all my suzi stuff gets the same treatment now

[LAY80N]

We use 577 and 567 heaps at work. Never tried it in relation to sealing petro-chemical applications, but it should work.


Layto....

[TheOtherLeft]

LAY80N wrote:

We use 577 and 567 heaps at work. Never tried it in relation to sealing petro-chemical applications, but it should work.


Layto....

What different applications do you use the 577 and 567 for? They appear to be very similar to me.

[LAY80N]

Pressure vessel, gas and fluid work. Fire supression equipment and systems. Extinguishing agents range from AFFF foam and water to FM-200.


Layto....