Oxalis acid color change ?

[mrg]

The last pic just came out of oxalic acid, the others I was stripping paint and thought the OG color was straw ?, and the front fender I had stripped a while back was starting to rust so I thought the OA would take care of the rust but the paint came out alot lighter, wish I would have just kept stipped and no acid. did I leave it too long (over nite) or do some just do that (the black pin strip is almost gone also)

 

[rideahiggins]

Looks like you left it too long and maybe from the bare metal looking spot the OA might not have been stirred up enough before use.

 

[fordmike65]

Yeah, I woulda left it a couple hours tops & kept checking it every so often...

 

[vincev]

Maybe too long in the bath.I go about 7 hrs.

 

[how]

thats why I dont use that stuff

 

[rollfaster]

Maybe too long in the bath.I go about 7 hrs.

And do listen to what he says, that roadmaster turned out fantastic.

 

[bushb2004]

OA works great, but like anything...you gotta be careful till you know how it works. But on a positive side, we all learn every day ( or should ) and that what makes us who we are.

 

[mrg]

left some parts in all day and came out ok (maroon & cream) could only fit half the fender in the pan and left it in over nite, about the same length of time.

 

[Freqman1]

That front fender looks like it was house painted white which could account for the difference. V/r Shawn

 

[mrg]

no the whole fender looked like it does on the right after I stripped old red paint off the whole thing, then only soaked the front half in the acid, it turned it whiter and took off the black strip also, I think I just left it in too long(over nite) although the colson tank was in all day and did not change color ?