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De-Rusting Process

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Forum topic by MsDebbieP posted 190 days ago 698 views 1 time favorited 31 replies Add to Favorites Watch
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MsDebbieP

18614 posts in 2663 days


190 days ago

Topic tags/keywords: rust

Oct. 12/13

I’ve been cleaning up an antique cast iron kettle and today, as I was working on our next eMag, I thought that perhaps it might be of interest to my fellow LumberJocks.

A brief history on the project: I bought a rusty old cast iron kettle or bean pot several years ago and it has sat around with a potted plant sitting in it. I was told that it is from the 1800’s and should be cleaned up. So… I did.

BEFORE

It started with a night coated with the lye solution “Easy Off” oven cleaner. That took off the built up gunk but the thick layers of rust were still there. Because of the major pit marks in the bottom, the typical strategy of soaking it in a vinegar solution was ruled out because the vinegar would eat through the remaining metal and I would end up with a sieve. So the experts told me to try molasses (not that they had tried it before but apparently it works and is gentler than the vinegar).

So off to the local feed store I went to buy a bag of feed molasses (the required element.) I mixed it with water at a 1:6 ratio and stuck the kettle in it. Apparently the process is a 2-4 week event but because, I think, I had chose the 1:6 instead of 1:10, it only took 4 days for the rust to be gone.

I also put a rusty hammer into the mix and after just one day it was a sparkling grey, ready to be oiled up. (Sorry, no pictures of the hammer .. I wasn’t thinking LumberJocks at the time.)

AFTER

My blog about the process can be found here: LINK

-- ~ Debbie, Canada (https://www.facebook.com/DebbiePribeleENJOConsultant)


31 replies so far

View joein10asee's profile

joein10asee

2763 posts in 510 days


#1 posted 190 days ago

Dang! What a difference!

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View MsDebbieP's profile

MsDebbieP

18614 posts in 2663 days


#2 posted 190 days ago

Yes, indeed. The “Ms Molly Brown” is now “Ms Molly Black” :)

-- ~ Debbie, Canada (https://www.facebook.com/DebbiePribeleENJOConsultant)

View CanadianWoodChuck's profile

CanadianWoodChuck

386 posts in 2416 days


#3 posted 190 days ago

Wow that did a great job on that old kettle.
It was weird because yesterday George over at Woodworkers Guild of America just did a write-up and video on rust removal using electrolysis, and it worked really well too without damaging the old plane.
Here’s a link if you want to check it out.: http://www.wwgoa.com/removing-rust-with-electrolysis/
Bruce

-- Canadian Wood Chuck (Bruce)

View MsDebbieP's profile

MsDebbieP

18614 posts in 2663 days


#4 posted 190 days ago

I heard that that is a good strategy. “Electro” .. sends shivers up my spine. I don’t think I’d be brave enough to give it a try… especially now that I have tried this ever-so-easy method.

But, options are good … vinegar; electrolysis; molasses …

-- ~ Debbie, Canada (https://www.facebook.com/DebbiePribeleENJOConsultant)

View CanadianWoodChuck's profile

CanadianWoodChuck

386 posts in 2416 days


#5 posted 190 days ago

For sure, it’s whatever works and you feel comfortable with. :) Enjoy your pot … that doesn’t sound good does it :)

-- Canadian Wood Chuck (Bruce)

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MsDebbieP

18614 posts in 2663 days


#6 posted 190 days ago

hahaa well, umm… no. lol
She’s going to just be a conversation piece, due to the pitmarks in the bottom, but she has been the talk of the town this past week!

-- ~ Debbie, Canada (https://www.facebook.com/DebbiePribeleENJOConsultant)

View Grumpy's profile

Grumpy

19079 posts in 2354 days


#7 posted 190 days ago

That’s a great result Deb. Well done!
How big was the cleanup afterwards?.

-- Grumpy - "Always look on the bright side of life"- Monty Python

View MsDebbieP's profile

MsDebbieP

18614 posts in 2663 days


#8 posted 190 days ago

Clean-up: difficulty? Not much … but then I’m using the molasses mixture for some other cast iron items, now that I know how easy the process was—and that it works.
(And then my neighbour wants to try it on some car parts, so he will be taking it off my hands, I think)

If he doesn’t take it I am going to empty the tub on a patch of sand that has been overtaken by weeds. I’m hoping that the molasses will kill off the weeds without any negative side-effects.

-- ~ Debbie, Canada (https://www.facebook.com/DebbiePribeleENJOConsultant)

View b2rtch's profile

b2rtch

4026 posts in 1551 days


#9 posted 190 days ago

Amazing!
Great job.

-- Bert

View MsDebbieP's profile

MsDebbieP

18614 posts in 2663 days


#10 posted 190 days ago

View Grumpy's profile

Grumpy

19079 posts in 2354 days


#11 posted 190 days ago

Hey Deb, don’t waste it.
Make some rum with the left overs. LOL.

-- Grumpy - "Always look on the bright side of life"- Monty Python

View Don W's profile

Don W

13950 posts in 1070 days


#12 posted 190 days ago

4 days? That’s slower than molasses !!

Did you feed the molasses to the cows after? Add a little iron to their diet?

Interesting the food material that will eat rust away.

-- There is nothing like the sound of a well tuned hand plane. - http://timetestedtools.wordpress.com (timetestedtools at hotmail dot c0m)

View MsDebbieP's profile

MsDebbieP

18614 posts in 2663 days


#13 posted 190 days ago

not sure the fermented, rusty concoction would be very good for consumption.

-- ~ Debbie, Canada (https://www.facebook.com/DebbiePribeleENJOConsultant)

View Tim's profile

Tim

910 posts in 464 days


#14 posted 190 days ago

That turned out great. Never would have thought of molasses for rust removal. Yeah the concoction would be good for compost, but maybe not after auto parts went into it.

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MsDebbieP

18614 posts in 2663 days


#15 posted 190 days ago

as for how it works, I found this quote “What happens is there is a fermenting process and the sugars in molasses turns into acid, I am not sure which one but I think it may be lactic acid.”
Source

-- ~ Debbie, Canada (https://www.facebook.com/DebbiePribeleENJOConsultant)

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