Lid Catch Repair

ett

Joined
Aug 21, 2015
Messages
285
Location
Allentown, PA
Yup. Looks like using thread lock was a mistake.
No damage occurring yet.
But I used Permatex #24240.
And to quote a couple of sites I found:

https://www.permatex.com/products/thread-compounds/threadlockers/permatex-medium-strength-threadlocker-blue-5/
The Instruction tab states: "NOTE: Medium Strength Threadlocker works on metal parts. It is not recommended for plastics.Cured Medium Strength Threadlocker must be sheared (hand tools will do) before parts will separate."

And

https://www.chiefdelphi.com/media/photos/39521
"I took a workshop on loctite adhesives once. Note that Loctite makes many types of adhesives, not just the threadlockers we normally identify them with. One thing they emphasized in the training is that anaerobic adhesives are not compatible with most plastics, and polycarbonate is especially vulnerable. An interesting fact is that the red plastic bottles they use for most of their threadlockers is microscopically vapor porous, like an eggshell or goretex. This prevents the threadlocker from curing in the bottle."

--ET
 
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