epoxy over lead/tin

C

cstrom72

Searched, any issues with using epoxy over lead or the new tin stuff as long as its got 80 Grit DA scuffs??
 
No issues, epoxy will be best. Sanded and get it very clean, no acid residue, SPI water based cleaner on final wipes would be a good idea.
 
Another thing I would like to add.
Dry the waterborne and let set for a few hours, I like over night.
MOST important, add no reducer to the epoxy and spray a wet coat and walk away for an hour before doing the next coat.
this is as bullet proof as you can get.
 
I like to use a small SS wire brush with the cleaner, to make sure all the sand is out of the lead. Just my opinion, but I believe that imbedded sand is the reason for many of the paint failures over lead.
 
Wash the lead and surrounding area off with baking soda water soultion and a scuff cloth this gets rid of any left over acid. Rinse with water and a clean scuff cloth. Let dry. I use waterborne cleaner and shoot next day. I work nights and I try not to shoot bare metal/repairs late at night cause I'm tired and won't do a good job cleaning my guns. I feel much better shooting at 6:00pm than 10 or 11:00pm.

When I first went to work in a dealership I got to repaint a couple of sail panels on 72 Monte Carlo's. The factory rep said the acid didn't get cleaned off on the lead joint and the paint bubbled. Don't know if that was true but was told to mix a bit of baking soda with water and use steel wool to clean it with. It seemed to work. I've since changed to scotch brite pads, I think they are more paint friendly.
 
Very good point Keith, the tinning acid is too strong to rinse off with just water, it needs a base such as baking soda with water to neutralize.
 
Good call on the baking soda wash. It's important to wash the flux before solder is applied and wash the job again when it's done.

Chevman is right. I don't sand the lead at all only file it. The aluminum oxide can imbed into the soft lead and cause a blister later.

I'm paranoid so I wash several times throughout the process. Even when I find old lead repairs I wash those again a few times before I epoxy over.
 
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