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A note on Loctite/Permatex...

Posted: Fri Dec 24, 2010 9:47 am
by dougie
Many of you knowledgeable people here will already know this...

Loctite 243 is the same strength as 242 (blue) but is marketted as "oil resistant" or "surface insensitive".
I used it 2 years ago on driveshaft bolts that I just removed this week. After 2 years of spinning in gear oil, the Loctite was still doing its job. I could not remove them with my fingers until the last 2 or 3 threads, and the bolts needed wire brushing to remove the residue.
I'm impressed with the 243, and astounded by the truth in advertising (who knew?).

Re: A note on Loctite/Permatex...

Posted: Fri Dec 24, 2010 4:28 pm
by enigmaT120
I don't remember seeing that one; I'll have to look out for it. But I still think it's a good idea to clean up threads before reassembly.

Re: A note on Loctite/Permatex...

Posted: Fri Dec 24, 2010 6:08 pm
by dougie
enigmaT120 wrote: But I still think it's a good idea to clean up threads before reassembly.
Absolutely.

Re: A note on Loctite/Permatex...

Posted: Fri Dec 24, 2010 6:15 pm
by Zombie Master
I'll look for that oil resistant part number. I'm a big fan of locktite. It keeps the corrosion out of fasteners.

Keep in mind the reduction in torque application when using!

Re: A note on Loctite/Permatex...

Posted: Fri Dec 24, 2010 6:35 pm
by dougie
Zombie Master wrote:Keep in mind the reduction in torque application when using!
Nah :!:

Re: A note on Loctite/Permatex...

Posted: Fri Dec 24, 2010 7:09 pm
by SteveD
How much do you use on the thread? A dot of it, or a splash of it?

Re: A note on Loctite/Permatex...

Posted: Fri Dec 24, 2010 7:12 pm
by dougie
SteveD wrote:How much do you use on the thread? A dot of it, or a splash of it?
Usually a dot or drop, then blow on it to spread it around.
If I'm really concerned, I will also put some in the nut or hole.

Re: A note on Loctite/Permatex...

Posted: Fri Dec 24, 2010 9:08 pm
by vanzen
I like to take a nice light bead around the circumference of the fastener.
A bit excessive .

Thread-locking plastics is cool sh!t.
Read the label thoroughly to be certain that you have the right formulation for your job.
(one size does not fit all)