Temperature needed to defeat red threadlocker?

[LLCoolBeans]

Modding a light and I need to know what the temp is I need to heat the workpiece to in order to defeat some red threadlocker. You would think this would be easy information to find, but I've just done several google searches and I'm coming up dry.

Also, at what temperature do typical LED flashlight electronics incur damage? Basically I need the range of temps between when threadlocker lets go, and flashlights die.

Thanks

 

[precisionworks]

Without knowing the manufacturer of "red threadlocker", you have to take the values published by major makers like Henkel (LocTite brand) and factor that into a SWAG (Scientific Wild *** Guess).

The most common (in the USA) products are 246, 262, 266, 271 or 272.

For 262, the hot strength goes down to 50% at 150°C

272 is another story, requiring over 250°C before it drops to 50% strength.

All the Henkel threadlockers are listed here:

http://www.henkelna.com/cps/rde/xch...dDotUID=00000002IP|brandRedDotUID=0000000389|

 

[LLCoolBeans]

Ok, but is 250 degrees hot enough to cook a driver board?

I'd provide you with the exact product description if I could.

 

[precisionworks]

250C is equal to 482F. Quite a few low temp PCB solders melt at only 500F.

Try boiling first, as that means only 100C. It may work.

 

[LLCoolBeans]

250C is equal to 482F. Quite a few low temp PCB solders melt at only 500F.

Try boiling first, as that means only 100C. It may work.

I have a thermometer and a heat gun, I was planning on using that.

 

[tino_ale]

At above 200°C you'll start to have problems with solder melting...

As previously said, I think boiling is a good first try.

 

[LLCoolBeans]

As it turned out, there was no threadlocker on the threads in question. So, light actually came apart without using any heat. Thanks for the help though.

 

[kromeke]

I've got access to low temperature chambers. On two occasions, I've cycled parts that were threadlocked (don't know if it was the red variety) about 5 times from -40 degrees to 70 degrees C. (Five cycles, meaning hot/cold hot/cold hot/cold, etc.) This has worked for me, everytime. This is also the temperature cylce we use to test electronics, so it shouldn't damage anything, unless there are bad joints or design. It is called environmental stress screening or ESS.