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HomeAircraftHelicopterHelicopter Main Discussion › Solvent for Loctite
03-07-2012 05:08 AM  6 years agoPost 1
TheWoodCrafter

rrKey Veteran

Costa Mesa, Ca.

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It has been a while since I have bought used stuff and now I remember why.

Some guys like to use Loctite like it was oil.
Some of the screws will not come out of the bearings.
How do you get it off screws, spacers, etc?
I guess I'll replace the small bearings.

What a mess.

Thanks, TheWoodCrafter

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03-07-2012 05:16 AM  6 years agoPost 2
Dr.Ben

rrMaster

Richmond, VA, USA

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For all intents and functional purposes, there is no solvent for cured loctite. Part of the way tensile strength of the cured adhesive is assessed by the mfg is by soaking fasteners for long periods in solvents such as acetone. Thus a wipe with anything you'd want to have in your shop is not going to clean it off anything. A SS wire brush in a dremel works well to clean screw threads. You can also briefly pass screws through a torch flame, which burns off the loctite in very short order allowing for easier cleaning with the SS brush.

If the screws are stuck in the bearing ID, support the bearing in a small ID socket and press the screw out retrograde.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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03-07-2012 05:25 AM  6 years agoPost 3
TheWoodCrafter

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Costa Mesa, Ca.

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Thanks Ben.

I was afraid of that.

Thanks, TheWoodCrafter

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03-07-2012 12:14 PM  6 years agoPost 4
semper_fish

rrNovice

Orlando, FL

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If you want to re-use screws you can soak them in alcohol. It seems to loosen up blue locktite for me and then I brush them with a stiff tooth brush. Replacing the screws/bearings would be better though I guess. http://www.rcscrewz.com/index2.php/...-heli/cPath/350 these guys sell screw and bearing sets by model.

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03-07-2012 12:21 PM  6 years agoPost 5
kcordell

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O Fallon, MO

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I take all of the bolts I take out of models and use a plastic 35mm film cannister (bet you can't even get those anymore) full of laquer thinner. Soak them in there awhile, they clean right up. If I really want to use them badly again, I will run them thru a 3mm die, that's usually good enough to remove most of the residual loctite.
The laquer thinner trick also works well with bearings. Soak them for a day or so, shake the cannister vigorously and you'll be amazed at the amount of crap that comes out of the bearings.
Then use a 'greaser' and you're good to go again.

Team Synergy/Rail, Team Scorpion, YS Engines, VelTye

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03-07-2012 02:14 PM  6 years agoPost 6
Gladiator

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Miramar, FL - USA

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When I reuse the screws I clean them with alcohol and remove the loctite with an exacto knife. Otherwise I have spares from Align, Blade and RCScrewz.

iKon, because I am connected to my heli, are you?

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03-07-2012 03:17 PM  6 years agoPost 7
Four Stroker

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Atlanta

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I only use blue loctite. I do what Kevin does and run them through a die and then clean the oily crud off with windex and a paper towel. Pipe cleaners and windex degrease threaded holes followed by dry one.

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03-07-2012 03:43 PM  6 years agoPost 8
thedirt

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Texarkana, Tx.

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The best way I have found is to use my little propane torch that is used for soldering copper plumbing up. It has a trigger that lights it up so it only takes a second to fire it up burn off the locktite from the screw which is held in my screwdriver, thorp driver, ect. and you have a brand new bolt ready to go. I like to use locktite on stuff just for the fact of its cheap insurance so I figured out this little system a long time ago to get the mess off in a hurry.

Just remember its hot afterward! I still have trouble with this!

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03-07-2012 06:11 PM  6 years agoPost 9
MartyH

rrProfessor

USA

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Heat is the best way to loosen Loctite. You don't have to get carried away with it.

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03-07-2012 06:19 PM  6 years agoPost 10
balsabasher

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Central Ohio, USA

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Like they all say, heat and/or scrape. It works for me.

Blades; what goes around, comes around!

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03-07-2012 07:16 PM  6 years agoPost 11
Justin Stuart (RIP)

rrMaster

Plano, Texas

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I believe I read somewhere that Loctite is a form of cyanoacrylate, and so CA debonder might work as a solvent for it.

I have not tried this as CA debonder is expensive and Loctite can be decomposed with heat or removed with a razor blade. But it would be a worthy experiment.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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03-07-2012 07:34 PM  6 years agoPost 12
kcordell

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O Fallon, MO

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Debonder = common name = acetone

Team Synergy/Rail, Team Scorpion, YS Engines, VelTye

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03-07-2012 07:59 PM  6 years agoPost 13
helinutz2

rrApprentice

Medicine Hat, AB Canada

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I've used a film canister with 30%Coolpower. Soak parts overnight and ..Presto.. clean threads. Make sure to degrease after.

In retrospect though, straight methanol might work, then no degreasing required.... But, I wasn't sure if it was the methanol or nitro that did the trick.

Rave 90 ENV / Radikal E640 / Rush 750 / Trex 600N
Team No WhinerS, Team Renegade R/C Heliflyers

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03-07-2012 08:02 PM  6 years agoPost 14
Heli 770

rrProfessor

USA.

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CA. debonder has nitro in it.

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03-07-2012 08:10 PM  6 years agoPost 15
Dr.Ben

rrMaster

Richmond, VA, USA

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I did a little research.

Mfg. recommendation for removal is methylene chloride. The main chemical component is methacrylate ester.

On a scale of 1-4 on its MSDS, it is a 3 for reasons of cancinogenicity. Not pleasant stuff. I think I'll stick with a pass through a torch flame and my wire brush. Or, better yet, buy hardware in bulk from McMaster so you can afford to pitch a screw or few in the trash can rather than taking all the time to clean them back up. I do that anyway for 3mm set screws, never using them more than once.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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03-07-2012 08:31 PM  6 years agoPost 16
OICU812

rrMaster

Edson, Alberta, Canada

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There is something I recently found

Goto a major gun shop buy "Sweets 762"
Let sit for 5 mins light brush completely gone

Most often I'm like the doc, carry tons of spare bolts etc

...Once upon a time there were Nitros, flybars and frequency pins...

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03-07-2012 08:50 PM  6 years agoPost 17
Justin Stuart (RIP)

rrMaster

Plano, Texas

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The main chemical component is methacrylate ester.
You found this documented for blue Loctite? Then that confirms it is a type of cyanoacrylate. I thought I had read the same somewhere in the past.

Cyanoacrylate debonder is most commonly a nitromethane based solvent. 30% cool power has a lot of nitromethane in it. I don't believe I have ever run across a brand of CA debonder that had acetone as the primary ingredient.

As for carbon tetrachloride, chloroform, and methylene chloride, these are all carcinogenic and are not the best to use for anything if you can avoid it. Yes, they are better healthwise than benzene, but they are still mutagenic and carcinogenic. However they are fantastic solvents.

Brake cleaner is a good (cheap) commercial source of methylene chloride.

Avant RC
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Thunder Power RC
Kontronik Drives

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03-07-2012 09:04 PM  6 years agoPost 18
cdrking

rrElite Veteran

Seattle

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I've used a tap for the holes and a metric die for years and it works great. I also use a cordless screwdriver with an allen head for speed.

Jeff

To hover is divine, the alternative is rather PLANE.

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03-07-2012 09:44 PM  6 years agoPost 19
LaurenceGough

rrElite Veteran

UK

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Residual Loctite causes no harm, good if anything.

I've never once cleaned a bolt of old Loctite, it has already cured so no chance of it creeping out.

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03-08-2012 02:56 AM  6 years agoPost 20
slam beach

rrNovice

north stonington,ct,usa

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I use a pencil torch soldering tip to loosen cured loctite,then a urine cup full of MEK,shake and remove,all clean,(fumes are pretty strong,and flammable,use ventilation)

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HomeAircraftHelicopterHelicopter Main Discussion › Solvent for Loctite
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