Ivan's coupe: seeing RED

[Ivan141]

I used HG rust dissolver, which is basically phosphoric acid in a 30% solution with some additives to make it thicker (and stick better).
It doesnt really dissolve much at this strenght.. but you can see where the metal turned black that it does convert some rust into something else.

I'm getting myself some foodgrade 75% acid soon which I have higher hopes for.