In article
,
Jim Wilkins wrote:

I -think- I've rust proofed several tanks by sloshing LPS-3 mixed with
kerosine around in them. A week hanging up in the sun dried out the
solvents. I did have to explain the bright red 60 gallon tank hanging
from a tree. (It's a bird feeder...)

Heck, if you are going to go to the bother, use "Kreem", made for
derusting/sealing motorcycle gas tanks.

--
Cats, coffee, chocolate...vices to live by