finally got started on this stripping project. Yesterday evening, I
poured a 32"oz bottle of white vinegar in a plastic container and placed
the 4 zinc plates in there. let sit over night. checked this morning.
I added 1/2 a bottle of white vinegar to the container. it wasn't
finished stripping the zinc from the plates. it did 2 of them of them
at least 99% stripped. one of them is still shiny, and the other is 50%
stripped thru. I wonder if the quality of white vinegar is a factor. I
got this Great Value White Vinegar from the walmart grocery store, it
was cheaper than the regular brand white vinegar.
Zizzle that Fire - it's Zizzle Time !!!!!!!
A gallon of Muriatic would have finished in about 30 seconds at
probably a lower price. Don't try to save the leftovers - the
fumes will rust anything steel in your shop no matter how tight
you make the lid. DAMHIK.
Keep the whole world singing . . .
5% vinegar is 5% vinegar, regardless of brand. Same with 5.25% hypochorite
The thing to watch for is the rate of the reaction; as acetic acid becomes
zinc acetate, the remaining acetic acid in solution will be further diluted,
and will work slower to dissolve the remaining zinc. Because of this, you
might have better results if, after letting it work overnight, you replaced
the spent acetic acid solution instead of adding more vinegar to it, and
diluting the new product.
You might also try heating up the vinegar to promote a more vigorous
reaction from the get go, and lightly abrading the surface with a green 3M
scrubby to further promote the reaction.
I still think just scuffing it with the scrubby and washing in dish soap
would have been plenty. Then paint with stove paint and bake. I predict
OP will soon have rust forming in every little paint nick on this thing.
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