Hmmm I do have a butane lighter type torch for cigars. I don't want to heat the solenoid, but the solenoid is the female part. Would it make sense to heat the male brass fitting or would that defeat the purpose?
The white lock tight stuff is not hard, I don't think it's epoxy, however upon inspecting the split manifold I got from GLA it is definitely glued together with epoxy.
The lock tight stuff is like a grease and I can scrape a little off with my fingernail. It looks like Teflon tape (white) but its creamy/greasy.
I was using a channel lock wrench and it didn't happen for me. I don't care if I ruin the fitting because I'm going to replace it anyways, just worried I'd strip it and not be able to get a grip on it anymore.
Thanks everyone for your help.