Hi Terry,
...I can spell "BOOM" for sure
I did the electrolysis try outside so there is no way to store some gas to let it make BOOM.
I know the phosphoric acid stuff but I bought a complete tank cleaning/seal set and this stuff is working #$%*ing great
Have a good one...Georg
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No worries Georg, I've been gun shy of Hydrogen gas since I blew the battery up on my first F2 when I was installing a Dyna ignition, the case burst open and dumped battery acid all over my bike.
The rust remover in your tank sealing kit was most likely phosphoric acid, it's used in pretty much all of the tank sealing kits as it's the safest acid that you can use, phosphoric acid is used in chrome polish, tooth paste, food additives, household and industrial cleaners, fertilizer, and even in Coca Cola and most other Soda drinks.
Larry is correct, if you have a really rusty tank it'll eat all of the rust, and if the rust has eaten thru the metal it'll obviously leave pin holes, and if you leave a tank in it for weeks it'll eventually eat it, as it will most cast materials like fuel petcocks, carb bodies and cylinder sleeves etc, but only in extreme circumstances, it's the only acid that I'm confident to use. Cheers, Terry.