Author Topic: EvapoRust Black Line Prevention  (Read 466 times)

Offline Tom Neitzel

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EvapoRust Black Line Prevention
« on: April 22, 2020, 08:59:15 AM »
An EvapoRust trick. Those of you that have tried to take the rust off a big object that you can't completely submerge in the liquid have likely learned that a black line that is essentially impossible to remove, will form where the liquid meets the air. I've devised many methods to make sure I can completely submerge something, but I had a brainstorm when cleaning the old German hex waffle iron.

All I needed to do is to prevent the air from getting into contact with the iron and liquid at the contact. Something waterproof might work. So I smeared Vaseline (Petroleum Jelly) on the handles. Then made sure the liquid hit the handles on the jelly. Worked perfectly. No black line and a nice clean finish.

Pictures to show it in progress.

I did put Archimedes to work too, the pictures tell the story.

First pic, you can see the smeared on Vaseline.  Covers enough area to be sure the liquid/air line is protected.

Second, waffle iron in a 5 gallon EvapoRust can, but the level is below the Vaseline.

Third, Archimedes at work, filled a ziplock bag with water, put it in the can and displaced the EvapoRust high enough to hit the Vaseline.

Fourth, doing the other end of the iron handle.  I just had it hanging from a rack to hold it at the right level in the bucket.

« Last Edit: April 22, 2020, 09:07:46 AM by tomnn2000 »

Offline Tom Neitzel

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Re: EvapoRust Black Line Prevention
« Reply #1 on: April 22, 2020, 09:10:08 AM »
Here's the old waffle iron after cleaning.

What looks like a line in the overall outside picture on the handle is actually a bump in the casting itself.  Look at both the inside and outside of the handles and you will not see any evidence of the awful black line.

I picked Vaseline because I had some, it doesn't stink like wheel bearing grease, and it washes off easily.  Pretty much anything that is sticky and waterproof would work.
« Last Edit: April 22, 2020, 09:13:27 AM by tomnn2000 »

Offline Russell Ware

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Re: EvapoRust Black Line Prevention
« Reply #2 on: April 22, 2020, 11:36:46 AM »
Great tip Tom. Thanks for posting that. I've been moving towards a couple of applications for Evaporust. Preplanning looks like the key to success with it.

Offline Tom Neitzel

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Re: EvapoRust Black Line Prevention
« Reply #3 on: April 23, 2020, 07:34:20 AM »
Here's a picture of the pan that taught me about the black line seven years ago.  Tried just flipping it a bit in hopes the evaporust would remove it.  Nope.  Now has two permanent lines on it.  Arrows point to them.

Online Duke Gilleland

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Re: EvapoRust Black Line Prevention
« Reply #4 on: April 23, 2020, 09:29:30 AM »
Does the Evaporust "etch" the iron?
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Offline Tom Neitzel

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Re: EvapoRust Black Line Prevention
« Reply #5 on: April 23, 2020, 10:13:15 AM »
Quote
Does the Evaporust "etch" the iron?

Yes. At the liquid/air interface.

Offline Tom Neitzel

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Re: EvapoRust Black Line Prevention
« Reply #6 on: April 23, 2020, 12:01:40 PM »
EvapoRust is a great product, you just need to be aware of it's quirks.  Vinegar will do the same thing if your aren't careful.

Offline Sandy Glenn

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Re: EvapoRust Black Line Prevention
« Reply #7 on: April 23, 2020, 08:56:35 PM »
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I did put Archimedes to work too

He's probably proud of you for paying attention in physics class  :)

Good work... you did a great job on that iron and it looks beautiful.
... R-E-S-P-E-C-T ...     O. Redding

Online Duke Gilleland

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Re: EvapoRust Black Line Prevention
« Reply #8 on: April 23, 2020, 10:11:30 PM »
Quote
EvapoRust is a great product, you just need to be aware of it's quirks.  Vinegar will do the same thing if your aren't careful.
I knew about the vinegar and always kept a close eye on it. [smiley=shocked.gif]
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Offline Dwayne Henson

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Re: EvapoRust Black Line Prevention
« Reply #9 on: April 26, 2020, 08:28:41 AM »
Thank you Tom and Sandy thanks for the laugh!
Experience hath shewn, that even under the best forms of government those entrusted with power have, in time, and by slow operations, perverted it into tyranny.
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