Quote Originally Posted by Navy7797 View Post
You can't neutralize what you can't reach. The inside has a rolled lip. The lead will seal it all from the outside. I want to lead it but can't. Unless I can sand or scotch bite it clean enough to get a filet of lead to stick there.
You're in Catch 22 - you don't want to flux because you don't want the acids in the flux to wick into the rolled lip, but the lead absolutely will not stick to the parent metal without flux. Lead/solder won't stick to a base metal, even if it's sterilized, without flux. Seems to me that the small amount of residual acids in the rolled lip will be totally encased in lead, absent any oxygen. Once any bonded oxygen is used up it couldn't corrode further, could it? Just thinking, and scratching my head a bit on this one.
If I were still in the office I'd be chatting with one my ChemE co-workers over a cup of coffee.