For every treatment out there, there is at least one failure story, usually because the person who did the job didn't take the time to do it properly. I had a POR-15 fail, and I'm sure I did it properly, but I used the same product from the same can on two other tanks, with no issues.
Whatever you do mate, stay away from MEK. (as opposed to "All the way, with LBJ") It is a fantastically dangerous product, and the fumes alone can dissolve your eyeballs. I loved it when I did what must have been the only successful Kreem job in tank sealer history (going by the way people here slag it off) but it is just so dangerous, I'll never use it again.
The best way to dry your tank after acid washing it (vinegar is an acid too, just not as effective as phosphoric acid, the best and safest tank cleaning acid) and then flushing it with plenty of clear water is with a heat gun or hair dryer. Just stick it in the fuel filler hole and crank it up to "high", then let it sit for awhile with the hot air running through it.
Once it heats the metal up to "uncomfortably hot", any water left in nooks and cranny's will dry out real quick. Compressed air alone won't remove ALL moisture, and that's where most tank sealers will fail. Do it once, do it right. Cheers, Terry.
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