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Old 04-22-2011, 07:54 AM   #1
63sbssbbw
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Rust removal...the easy way

AKA How to treat that irreplacable part
In my quest to save a heater control valve from a '63(one year only and not reproduced afaik) I discovered this cool process on another forum and thought I'd share.
Things you'll need:
Battery charger 2-10 amps(older ones work best as the newer ones won't let you short it out).
Plastic tub(large enough to submerge your part)
2 electrodes,long enough to protrude out of tub(chunks of rebar work good)
A piece of wire(from part to negative electrode)
Washing soda(1 Tblsp per gallon)
Water.
This HCV was siezed solid and disassembling it wasn't really an option(its put together VERY well),I figured I had nothing to lose, my only concern was what this process would do to the copper components.
Some before and after pics:
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Old 04-22-2011, 07:57 AM   #2
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Re: Rust removal...the easy way

One more pic
This piece works like brand new
I'm too compudumb to do a link,Maybe some one could
Its from the Stovebolt forum
Thanks
T
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Old 04-22-2011, 01:02 PM   #3
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Re: Rust removal...the easy way

Looking good,good job on the controls
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Old 04-22-2011, 11:37 PM   #4
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Re: Rust removal...the easy way

would like to see some pics of the set up
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Old 04-23-2011, 12:44 AM   #5
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Re: Rust removal...the easy way

very interesting and would like to also see pictures of the setup.
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Old 04-23-2011, 01:27 AM   #6
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Re: Rust removal...the easy way

2 questions,
1 what is washing soda?
2 how long was it hooked up to the juice, and in the tub?

1 more where do you get the washing soda?

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Old 04-23-2011, 01:36 AM   #7
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Re: Rust removal...the easy way

Quote:
Originally Posted by dicer View Post
2 questions,
1 what is washing soda?
2 how long was it hooked up to the juice, and in the tub?

1 more where do you get the washing soda?
I believe Washing soda is same as baking soda?
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Old 04-23-2011, 05:59 AM   #8
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Re: Rust removal...the easy way

Very cool. Would be nice to see a step by step "how-to" with pics!
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Old 04-23-2011, 07:06 AM   #9
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Re: Rust removal...the easy way

Thanks guys
I will get some pics of my set up,I have it set up at work
It took about 15 hours(over night),as you can see by pic 5,it could've used a repositioning and a few more hours as this process is "line of sight" related.
One is only limited by the size of your plastic tub( I have heard of guys using kids wading pools LOL) .
Washing soda can be purchased at your grocery store,in the cleaning aisle.
Once the part is done,srub clean with water,blow dry with compressed air or hair dryer or put in oven (my part has rubber seals so too much heat was out of the question) and prime right away as flash rust will set in right away.
I doused my part wth WD 40,worked the moving parts,rinsed with contact cleaner,redouse with WD 40,drip dry and bag for future install.
This whole process is laid out in the Tech Tips section on the Stovebolt website.
If someone could do a link to it for me,I would appreciate it, thanks .
T
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Old 04-23-2011, 10:41 AM   #10
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Re: Rust removal...the easy way

how to: http://antique-engines.com/electrol.asp

previous thread: http://67-72chevytrucks.com/vboard/s...d.php?t=385635
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Old 04-23-2011, 10:47 AM   #11
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Re: Rust removal...the easy way

Quote:
Originally Posted by Jeffs70 View Post
I believe Washing soda is same as baking soda?
No, it is not the the same as baking soda
Arm & Hammer makes it, so it is often confused with baking soda, but Washing Soda is what you need its used as a laundry detergent booster.
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Old 04-23-2011, 10:52 AM   #12
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Re: Rust removal...the easy way

Quote:
Originally Posted by chas350 View Post
No, it is not the the same as baking soda
Arm & Hammer makes it, so it is often confused with baking soda, but Washing Soda is what you need its used as a laundry detergent booster.
You can make washing soda with baking soda:

Quote:
Take baking soda, spread it out onto a cookie sheet and bake it in the oven at a little over 300 degrees for an hour or so it will drive away a water and CO2 molecule thus making washing soda.
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Old 04-23-2011, 02:22 PM   #13
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Re: Rust removal...the easy way

Thank you for the links rendus,
You're the man
T
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Old 04-23-2011, 11:05 PM   #14
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Re: Rust removal...the easy way

Good info.
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Old 04-24-2011, 01:35 PM   #15
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Re: Rust removal...the easy way

saving this
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Old 04-24-2011, 10:30 PM   #16
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Re: Rust removal...the easy way

I saw a link where a guy made a large trough to do the same to derust an entire frame!
cool process!
here are a few links that I had saved:
http://www.spaco.org/Blacksmithing/R...cDerusting.htm

http://www.icehouse.net/overland/derusting.html

http://www.oldspower.com/vb/showthread.php?t=44075

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Old 04-25-2011, 02:02 AM   #17
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Re: Rust removal...the easy way

another great way to remove rust is to use muratic acid. mix it as strong as you want, i usually mix it 1 to 3 with water. it can be found at farm supply stores for about $6/gal. all you have to do is mix it, drop parts in and wait until they come up clean, the stronger the mix the less time it will take. when the part is clean, remove it and rinse throughly. then dry with oven or towels to help stop flash rust.


WARNING- do not get an acid on your skin, it is nasty stuff and will burn holes in clothing and skin if not handled properly. wet any concrete you are working on to neutralize acid on contact. It will break up concrete if it is allowed to soak in.

Before and After acid
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Old 04-25-2011, 03:40 AM   #18
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Re: Rust removal...the easy way

Quote:
Originally Posted by 1964c-10 View Post
another great way to remove rust is to use muratic acid. mix it as strong as you want, i usually mix it 1 to 3 with water. it can be found at farm supply stores for about $6/gal. all you have to do is mix it, drop parts in and wait until they come up clean, the stronger the mix the less time it will take. when the part is clean, remove it and rinse throughly. then dry with oven or towels to help stop flash rust.


WARNING- do not get an acid on your skin, it is nasty stuff and will burn holes in clothing and skin if not handled properly. wet any concrete you are working on to neutralize acid on contact. It will break up concrete if it is allowed to soak in.

Before and After acid
Great Idea. I used to handle Muratic Acid quit a few years ago and it can be nasty stuff but sure does a great job.
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Old 04-25-2011, 05:58 AM   #19
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Re: Rust removal...the easy way

I saw this on TV, power block I think, so tried this with a rusty steel rim a couple of months ago, sorry no pics, and it worked great. Got all the rust out of the nooks and crannies. Bought the biggest and cheapest plastic tub from wally world and used a piece of conduit I had laying around for the positive side. Best part is there's no nasty chemicals to get rid of, dumped the rusty water in an obscure part of the yard and nothing died. Do this in a well ventilated area as just like a battery it puts off hydrogen gas.

Wife likes it too because I can do all the honey-do's while de-rusting parts.
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Old 04-26-2011, 03:41 PM   #20
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Re: Rust removal...the easy way

Quote:
Originally Posted by 1964c-10 View Post
another great way to remove rust is to use muratic acid. mix it as strong as you want, i usually mix it 1 to 3 with water. it can be found at farm supply stores for about $6/gal. all you have to do is mix it, drop parts in and wait until they come up clean, the stronger the mix the less time it will take. when the part is clean, remove it and rinse throughly. then dry with oven or towels to help stop flash rust.


WARNING- do not get an acid on your skin, it is nasty stuff and will burn holes in clothing and skin if not handled properly. wet any concrete you are working on to neutralize acid on contact. It will break up concrete if it is allowed to soak in.

Before and After acid
Is the "after" picture painted? Also, what do you pure the mixture into? A plastic bucket or what? Thanks.

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Old 04-26-2011, 03:51 PM   #21
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Re: Rust removal...the easy way

the after picture isn't painted. it was taken right after i rinsed it off.
it's just clean 45yr old steel


i have used a 5 gallon plastic bucket to dip in which works great for small parts

now i am using a 50 gal plastic livestock water tank to dip in. it's just big enough to fit two 15" rims in side by side
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Old 04-26-2011, 03:52 PM   #22
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Re: Rust removal...the easy way

Cool, thanks for the quick reply. I didn't know if the acid would eat through the plastic or not.
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Old 04-26-2011, 03:53 PM   #23
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Re: Rust removal...the easy way

Actually, I have one more question. How many times can you use the acid? Meaning, how many consecutive parts can you dip in it without having to change it?
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Old 04-26-2011, 04:14 PM   #24
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Re: Rust removal...the easy way

i'm not sure how many parts you can dip, it probably depends on the size. i havent dumped any acid yet that has quit working usually i get the job done before the acid needs changed

the current batch i'm using has been mixed for about 2 months and i have been dipping parts on and off over that time period. it still is working very well.
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Old 04-26-2011, 04:32 PM   #25
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Re: Rust removal...the easy way

Thanks again. So, IF I do this in my driveway, I can wet the ground all around the bucket and the acid won't eat through the driveway? Does water neutralize it completely or dilute it?

Sorry for so many questions.
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