Originally Posted by y0da900
Loctite makes an actual thread sealant. Basic blue loctite is a thread locker that does a half decent job at thread sealing. Loctite 545 is the one I normally use, but there are several different grades of it as well.
what he said, the white loctite seal paste works a treat! i have used it on a few markers, have you tried a heavy lithium grease, as this can work as thread seal as well.