The material appeared to be glue or epoxy. I scraped it off and use a dremal and wire brush to clean it up. That is why I was thinking lock tight.
It was likely medium strength lock-tite. Nevertheless, no matter what it was, medium lock-tite will take care of your problem.
Sometimes you get what you pay for, sometimes you only pay more for what you get.
Three shots are not a "group"...they are a "few".
If the Bible is the literal, infallible, unerring word of God...where are all those witches I am supposed to kill? (Exodus 22:18)