[noboD]

Is the tank rusty inside? If it is, I've used the molassas and water trick and it works. It gets rid of the gas fumes so you can solder or braze a hole too. If it isn't rusty, I would not coat it. New tanks aren't coated and I'm wondering what the new additives will do to the coating.. I've used Red-Cote with good results. I've also heard Por-15 works.There's a thread either here or on JJ for contact info. Just an opinion.