Loctite Disolver ?

I think there be many forms of loctite based on different chemicals,
which might cause problems finding a solvent. I scoured the internet
for a while but kept getting cross-linked to "loctite rust dissolver"
which was annoying! What you need to do is find out what solvent /
most/ loctite products are based on and have a go with that, i think
loctite provide material datasheets which might start you off?

If it's the threadlocker family of Loctite then (from their
literature) "no threadlocker is completely permanent; standard hand
tools remove even the highest - strength threadlockers following
direct exposure to heat (450°F to 500°F) for about five minutes."