Topic: fighting post-electrolytic in-tank flash rust

[pjlogue]

When I vapor blast steel parts I use distilled water to rinse them off after blasting.  I have used the distilled water as a quick rinse after de-rusting fuel tanks as well.  The reason being is the distilled water has no minerals or salt in it.  Once rinsed with distilled water I use isopropyl alcohol (98%) and dry with warm air.  Seams in tanks can be tricky as any chemicals you derust with (or electrolytes you use with electrolysis) will seep in there.  To leach these out of seams I would use freshly boiled (and cooled a bit) distilled water and fill to the brim, seal with saran wrap and rubber band to keep air from dissolving into the water and let it soak for a couple of hrs.  The boiling of the distilled water will remove oxygen from the water (and any other gasses)  This should prevent rusting inside the tank wile it soaks.

-P.

[newday777]

This has been a brilliant thread. Just one question......what is the ratio of ATF to Marvel please? Thank you for all the rest of the info. Just about to hit my tank (not literally!)

Welcome aboard the forum JAW911 from across the pond in New Hampshire.

What is it you are going to use the ATF and Marvel Mystery Oil for? (This thread is an old long thread with many things added and I don't have the time to read through it all)
Explain the plan you are about to do.

Go to the new members section and introduce yourself and your bike there.