Loctite Threadlocker ?

kwselke

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I purchased a tube of Loctite Threadlocker Blue 242 to use on screws used to attach pocket clips on several of my knives.

The instructions state... Locktite Threadlocker is designed for metal parts only. It is not designed to be used on plastic parts.

My intent was to use the product on metal screws that will be placed in many types of materials; aluminum, fiberglass reinforced nylon, G-10, carbon fiber, and more. I unsuccessfully tried calling the manufacturer's consumer help line with my question, but the wait time for a reply is shorter here.

Is the Loctite going to harm a material like fiberglass reinforce nylon, or is it simply not very effective when used on materials other than metals? Educate me, the package is unopened and I can take it back for a refund or exchange.
 

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The question isn't, Is the Loctite going to harm your knives? It is, Is it going to adhere to them? I've had to mount sling swivel studs to plastic stocks, and Loctite won't hold, at all or even a little to some of them.

I used a clear 2 part epoxy that was rated for everything but wood and rubber. I slathered the stud and the inside of the hole, and allowed doubled the recommended curing time. they are then a permanent mount! My first set I did like this is 32 years old and still going strong and unchangeable.

To remove the two part epoxy, call the manufacture, whatever the solvent is, I bet it will harm you knives!

Ivan
 
I can't answer your question regarding the glass reinforced nylon, but I did have problems with using 242 on screws that were securing a polycarbonate (aka lexan) ring to a metal ring. I can also tell you that 242 doesn't work well when both male & female threads are 300 series sst or both aluminum.

Tech support recommended #425 for the plastic parts and for the 300 series sst. This is, essentially, super glue except it cures slightly (very slightly) slower.
 
I've had Locktite thread locker spill in my toolbox...

It melted the screwdriver handles... :(

I'd be careful when using with plastic
 
Loctite the ones in metal.
Others in non metallic items like plastic etc super glue.
You can remove it as long as you are diligent in applying small amount originally.


Sent from my iPhone using Tapatalk
 
Loctite the ones in metal.
Others in non metallic items like plastic etc super glue.
You can remove it as long as you are diligent in applying small amount originally.


Sent from my iPhone using Tapatalk
That's the way I do it. If it's metal to metal, I use the blue stuff. If it's for plastic, I pull out the super glue.
 
Thanks for the input. I decided the small tube was not going to be worth $6 plus tax to me, so I took it back for a refund.
 
Amazing things have happened to and for me this week. Tuesday I ordered a replacement pocket clip for my oldest Spyderco. Ten years ago I could not grasp the concept of pocket clips and put the clip that came with the knife in a safe place. I now want to restore a clip to my slick old pocket friend, so I called Spyderco to order a replacement, because the original clip is still in a safe place. The wonderful lady I spoke with at Spyderco wanted to know if I needed the black or the silver clip. I said, all of my other Delicas have black clips. I'm not sure what the old one came with, it may have been silver. I broke down and spent the extra buck or so and ordered the silver clip. It arrived this afternoon in the mail along with a cool Spyderco sticker and a small tube of Loctite 243 Threadlocker. Wow, I did the right thing to take the Loctite 242 back for a refund and now feel confident that Locitite 243 is what I should use on stainless steel to FRN threads.

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