Vinegar as a rust remover - Vintage Mustang Forums
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post #1 of 20 (permalink) Old 01-06-2019, 12:22 PM Thread Starter
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Vinegar as a rust remover

This bracket was pretty rusty, some pitting.

Two days in a vinegar bath and it looks pretty good.

The vinegar also stripped what was left of the paint off.

Im pretty pleased with the results.
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post #2 of 20 (permalink) Old 01-06-2019, 01:01 PM
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now you can make rusty pickles. Just kidding. If it works then it works. Cheaper than evaporust.


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post #3 of 20 (permalink) Old 01-06-2019, 01:05 PM
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Any acid will remove rust, even Coke (the soft drink). Just be sure to give the metal a very good rinse and a quick drying.


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post #4 of 20 (permalink) Old 01-06-2019, 03:28 PM
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Quote:
My friend Pete
has been using vinegar for a while.

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post #5 of 20 (permalink) Old 01-06-2019, 03:30 PM
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aka acetic acid.

Bart

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- Alfred E. Neuman

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post #6 of 20 (permalink) Old 01-06-2019, 03:59 PM
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a superb rust remover is an electrolysis treatment. It will leave a phosphorus coating a few microns thick, which will impede future rust, and you can paint over it.

Described here:

https://forums.vintage-mustang.com/v...l#post10074742


Z

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post #7 of 20 (permalink) Old 01-06-2019, 04:04 PM
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Molasses will work too. Works great around delicate chrome too.


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post #8 of 20 (permalink) Old 01-06-2019, 04:30 PM
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I just used Evaporust for the first time. Check out these front leaf spring bolts after about 24 hours in the solution. (Ignore the longer shiny bolt, CJPP sent those with my new springs, obviously not the right ones, so took a pic to show them).

Before:


After:

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post #9 of 20 (permalink) Old 01-06-2019, 04:43 PM
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Quote:
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Molasses will work too.
But it's slow as molasses.
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post #10 of 20 (permalink) Old 01-06-2019, 04:48 PM
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But it's slow as molasses.

Yes it is. Iíve used feeding troughs i have from the farm that are big enough for fenders and doors. Takes a week or so. But it costs me about $100 to fill one up and it lasts multiple items. I canít even get a fender blasted for that much money. Throw it in, after a week I pull it out, hose it off and ready to go.


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post #11 of 20 (permalink) Old 01-06-2019, 05:00 PM
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But it's slow as molasses.
I put some on a bumper once just to see how well it might work. I came out a few hours later only to find the bumper still had the minor rust, but ALL the molasses was gone

The neighbors dog looked very guilty, and wouldn't look me in the eye when I questioned him.


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post #12 of 20 (permalink) Old 01-08-2019, 07:32 PM Thread Starter
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Update: After trying out vinegar in an oil drain pan I poured 4 gallons into a Walmart blue tote with a snap on top. I dumped a bunch of rusty parts in and closed the lid. Not all the parts were immersed.

48 hours later I pulled everything out and the parts that were not in vinegar were just as clean as those that were.

Now Im thinking that I only need a gallon in a sealed container.

I coated everything I removed in naval jelly to finish up the heavily pitted areas. Tomorrow I will finish cleaning them up and prime.

This has been much less work than sanding, wire wheeling or blasting.

Ive got batch #2 going and will have probably 2 more batches after that.


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post #13 of 20 (permalink) Old 01-08-2019, 07:50 PM
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Vinegar works fine, the only problem I have comes later. As Z pointed out you have to dry it immediately otherwise it will rust again. Sometimes I don't have the time to work on the parts after I removed the rust. Here Evaporust is great. Just dip it into (clean) Evaporust and let it air dry. It protects well for a couple of days (maybe weeks?).



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post #14 of 20 (permalink) Old 01-08-2019, 09:40 PM
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Quote:
Originally Posted by bmcgc View Post
Update: After trying out vinegar in an oil drain pan I poured 4 gallons into a Walmart blue tote with a snap on top. I dumped a bunch of rusty parts in and closed the lid. Not all the parts were immersed.

48 hours later I pulled everything out and the parts that were not in vinegar were just as clean as those that were.

Now Im thinking that I only need a gallon in a sealed container.

I coated everything I removed in naval jelly to finish up the heavily pitted areas. Tomorrow I will finish cleaning them up and prime.

This has been much less work than sanding, wire wheeling or blasting.

Ive got batch #2 going and will have probably 2 more batches after that.
Be sure to neutralize the acid after you are done . Even the naval jelly is acidic. If one doesn't neutralize the acid the paint will not adhere correctly.

Quote:
Originally Posted by Mustang4SF View Post
Vinegar works fine, the only problem I have comes later. As Z pointed out you have to dry it immediately otherwise it will rust again. Sometimes I don't have the time to work on the parts after I removed the rust. Here Evaporust is great. Just dip it into (clean) Evaporust and let it air dry. It protects well for a couple of days (maybe weeks?).
^^^^^^ +1

After the acid bath, a quick rinse and dip in a baking soda and water solution will neutralize the remaining acid on the part. Then blow dry it with a common hair dryer set on HOT. It's best to paint or powdercoat the parts without delay once they'd are dry. Flash rust is hard to avoid with de-rusted parts if they sit unprotected too long.

Z
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post #15 of 20 (permalink) Old 01-08-2019, 10:06 PM
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Originally Posted by bmcgc View Post
This bracket was pretty rusty, some pitting.

Two days in a vinegar bath and it looks pretty good.

The vinegar also stripped what was left of the paint off.

Im pretty pleased with the results.
Is this apple cider vinegar, or white vinegar?

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