Chemical Thread Locking

Reference

  • Anaerobic Thread Locking - NASA

Formulations

Loctite 222MS

Low strength Loctite for small fasteners. Has a purple color.

Loctite 222MS is not compatible with ABS and PC
The PC will degrade in a matter of minutes in my experience. It crumbles apart. I have not personally tested ABS, but the datasheet says to avoid it too.