We used to use Ospho, on the boats and barges, at work to remove rust stains back in the day. Like the rust streaks seen in the vertical white strip on the side of the barge. It worked well but got outlawed.
It may affect the shine on automotive paint so test it someplace hidden first. You can try diluting it too. Which we used to do when removing rust from vinyl logos on the equipment.
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If it breaks. I didn't want it in the first place.
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69 GTO \ 72 FIREBIRD \ 1/2 OF A 64 GTO \ 70 JAVELIN \ 52 FORD PU \ 51 GMC PU \ 29 FORD PU \ 85 ALFA ROMEO SPYDER \ A HANDFUL OF ODD DUCATI'S \ 88 S10 LT1 BLAZER & MY DAILY DRIVER 67 SUBURBAN.
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