I like to use Permatex Super 300 brush-on sealer as a thread lube and sealant. Indian Head shellac sets up like concrete once it dries, while the Permatex stays pliable for years. Personal choice- - - - -"your mileage may vary!"
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!