Loctite Applications

[drewd420]

purple loctite

i don't know about the USA but here in canada purple loctite is "low strength" for set screws not a sealant for airlines

[Mer]

There are, or at least used to be 2 purple Loctites. The thread locker is 222 or something like that and says thread locking. It's a low strength formula.

Eric

[Kodiak]

There are, or at least used to be 2 purple Loctites. The thread locker is 222 or something like that and says thread locking. It's a low strength formula.

Eric

222 Threadlocker Low Strength/Small Screw

Low strength threadlocker. Designed for precision metal fasteners under 3/4". Protects threads from rust and corrosion. Removable with hand tools. Available Worldwide

Applications
Set screws, adjustment screws, calibration screws, meters, gauges.

Color Purple (standard hand tools to diassemble)

545 Thread Sealant Hydraulic/Pneumatic Sealant

A liquid sealant for locking and sealing high pressure, fluid power systems with tapered fittings. Contains no fillers and will not foul valves or fluid filtering systems.

Applications
Used to lock and seal hydraulic and pneumatic fittings, servomechanisms, and fine-filtration systems. Specially formulated to offer lubricity for easy assembly.

Color Purple (standard hand tools to disassemble)

[drx975]

How long does blue 242 need to dry on a fitting before I can run air through my gun?

[BlackVCG]

About 24 hours.

How long does blue 242 need to dry on a fitting before I can run air through my gun?

[STRZ]

I just got off the phone with Loctite Technical.

If you are using stainless or chrome fittings into a stainless hole (like a classic Mag valve or high end nitro tank reg) MOST loctite will not set properly and will most likely leak. They recommend using #7649 primer to help the sealant set properly.

I normally use 545 but when I tried to change fill nipples in my tank it would leak every time because both sides are stainless which Loctite explained is non-reactive to the sealant and since there is air trapped inside the tank it will not cure ( loctite cures in the ABSENCE of air ).

I am going to get some primer and try it.....

ANYTHING BUT TEFLON TAPE!!!

[STRZ]

How about rescources, like where to buy the stuff, because I've had a tough time finding the rarer blends locally.

Loctite Tech 1-800-562-8483

Loctite Tech told me that Loctite is only carried by industrial distributors, never retail.

He recommends either:

Grainger
McMaster Carr
Fastenall

I use Grainger because they have a local branch and you can walk in and get it.

[Jdogg]

I am trying to change the reg on a tank, it wont come off i think it is loc but how doed one get the reg off


*if this is in the wrong form let me know

[PhoenixWolf]

I use Loctite Blue on air fittings. Works wonders. It's easy to apply, and almost totally bulletproof.

[djinnform]

White

just found it on Amazon

[djinnform]

Update: I hate Teflon tape so I tried to use the White Loctite to install some CCM air fittings. It only worked on 1/6 fittings. I called CCM for help, but I'm still have a really difficult time getting the CMM air fittings to be leak free. The hiss is driving me crazy, but doesn't really detract from air efficiency, or performance.

[XtraKargo]

545 (Purple): This is a thread sealant, not a thread-locker like the above products. This is to be used on airline fittings that need a sealant to keep them from leaking. Allow 24hrs to fully cure.


Wish I'd of read this part. I waited 12 hours or so for overnight. Will try it again after cleaning it out. It spit out a bit at the ASA where it leaked from an some tiny purple bubble at the valve. Ah well, I 'll do it later tonight and then will be gone all weekend and try again Monday.

[capt spank]

i don't know if it's old technology or not. but i recently discovered loctite thread sealant sticks. it sets super fast. no more teflon tape for me. and no more waiting overnight for liquid loctite to dry. i'm going to try the blue loctite stick on some feednecks next.

[carnutaz]

Does anyone have any experience combining Blue loctite (242) with Purple loctite (545) when installing macroline fittings? I will be installing CCM macroline fittings into my valve and ASA in a coupe days, and I was thinking about putting a drop of both blue and purple loctite on the threads? The purple as a sealant and the blue as further sealant and also to help hold the threads in place. Any thoughts or experience?

P.S. I was thinking of putting one drop of blue loctite near the tip of the fitting and then one drop of purple just behind the blue drop, not actually physically mixing the two loctites.