Topic: rust removal

[Don R]

I haven't tried it but look,

http://www.cookhaus.co.uk/vinegar/index.htm

[seaweb11]

And you can pour it out in the yard when your done

[dave500]

i like mollasses about 50/50 with water,soak steel for say a week and it comes out like it was just made,use it over and over,pour it on the garden if you want,smells good,my wife came out once when i was using it and asked have you split beer everywhere?its a mans world.i put some pictures of cruddy car brake discs in the tricks and tips section,anything treated with this stuff will flash rust instantly so use a prep acid afterwards.

[lone*X]

Both vinegar and molasses work and are non toxic and bio degradable.  In my opinion vinegar wins for the following reasons:  It is a lot cheaper, it works faster, isn't sticky therefore cleanup is easier, the used liquid can be used as a spot weed killer, and when you do pour it out behind the shop it doesn't attract ants.

Vinegar rust removal was a tech feature on Spikes TV's Trucks series a couple of years back but I have used it and seen it used since I was a kid (too many years to mention).

[Prospect]

I wonder if this would work on removing rust from inside a tank.  I've tried electrolysis but couldn't get everything off.

[seaweb11]

Just bought out the local grocery store

Will try this on some rusty bits from my GS1100E project today.

[gnarlycharlie4u]

Thanks for the tip. I can vouch for this method, it works well. Not the best but still really well.
A couple other options:

Electrolysis
Coke or (even better) Phosphoric acid

[old76cr]

This is why I love this forum! Bought a gallon of pickling vinegar. This has 7% versus 5% acid for table vinegar. Shock was sitting overnight and then I just took a brass brush to it for about 5 minutes. Only problem is ... I really want some french fries...

[SOHC Digger]

I wonder if this would work on removing rust from inside a tank.  I've tried electrolysis but couldn't get everything off.

Get Prep-N-Etch from the paint department at Home Depot!  I just used it on my gas tank and it did an amazing job!!!  I used about a 50/50 mix with water and let it set for 48 hours.

[Duanob]

Thanks for the tip. I can vouch for this method, it works well. Not the best but still really well.
A couple other options:

Electrolysis
Coke or (even better) Phosphoric acid

Careful with the plain phosphoric acid (rust remover), it will flash rust. I think the prep and etch mentioned above is the ticket.

[SOHC Digger]

Thanks for the tip. I can vouch for this method, it works well. Not the best but still really well.
A couple other options:

Electrolysis
Coke or (even better) Phosphoric acid

Careful with the plain phosphoric acid (rust remover), it will flash rust. I think the prep and etch mentioned above is the ticket.

The prep-n-etch actually advertises that it actually leaves a layer of rust inhibitor behind.  I had no flash rusting when I did my tank.

[gnarlycharlie4u]

I wonder if this would work on removing rust from inside a tank.  I've tried electrolysis but couldn't get everything off.

Get Prep-N-Etch from the paint department at Home Depot!  I just used it on my gas tank and it did an amazing job!!!  I used about a 50/50 mix with water and let it set for 48 hours.

YESSSSSSSSSSSS!!!! I've been looking for phosporic acid FOREVER!!!

Ideally I want to make my own custom solutions (for different levels/processes) of removal but I have been COMPLETELY unable to procure any more concentration.
In other words I can't get it from school and can't order it through the pharmacy.

This however sounds like a much better solution and I also don't have to swirl a 1% gas/oil in the tank.

Thanks!


Edit:

I wonder if the vinegar has any negative effects on the bushings or seals...

[Duanob]

Thanks for the tip. I can vouch for this method, it works well. Not the best but still really well.
A couple other options:

Electrolysis
Coke or (even better) Phosphoric acid

Careful with the plain phosphoric acid (rust remover), it will flash rust. I think the prep and etch mentioned above is the ticket.

The prep-n-etch actually advertises that it actually leaves a layer of rust inhibitor behind.  I had no flash rusting when I did my tank.

Experience is something you get, right after you need it! 

[Rio_CB750]

I love to use electrolysis, worked wonders for my gas tank and I do parts here and there, also can just pour it into the grass.

http://www.rowand.net/shop/Tools/Electrolysis.htm

[gnarlycharlie4u]

I love to use electrolysis, worked wonders for my gas tank and I do parts here and there, also can just pour it into the grass.

http://www.rowand.net/shop/Tools/Electrolysis.htm

That's a great tutorial. I had links to some good ones too but I just can't find them.
I'm glad he mentions NOT to use stainless steel as the anode because it produces (toxic) hexavalent chromium.
What few people realize though is that resistance is directly affected by the distance between cathode and anode (+ and - connection).
Therefore the closer you put the re-bar (or whatever sacrificial anode material) to the item having the rust removed, the more effective / faster the process will be.

[dave500]

ive used this stuff
http://www.kbs-coatings.com.au/KBS-RustBlast_p_9.html
it also comes as part of their fuel tank sealer kit,i used this stuff on a bare metaled tank and it works as advertised.yeah lonex i expected bees and ants to go for mollasses but it didnt happen,had a few kamikazi moths though.

[fmctm1sw]

Lots of info like this in the tank cleaning threads.  Toilet bowl cleaner is another alternative.  Noe, I'll sit back and wait for the "boiling lemon juice contingent."

[AshimotoK0]

DeOx-C - Absolute magic stuff. Bio friendly and can be disposed of down the drain. Safe on Chrome - it was the only thing I would use on the 750 frear fender I got which had slight rust on the underside. There is also a Gel version Try it you will be amazed!

Cheers

Ash

http://www.bilthamber.com/deoxcbuy.php

http://www.agriemach.com/product_info.php?cPath=94&products_id=1062

[Terry in Australia]

I love to use electrolysis, worked wonders for my gas tank and I do parts here and there, also can just pour it into the grass.

http://www.rowand.net/shop/Tools/Electrolysis.htm

Doesn't electrolysis create Hydrogen gas? BOOM! 

[gnarlycharlie4u]

I love to use electrolysis, worked wonders for my gas tank and I do parts here and there, also can just pour it into the grass.

http://www.rowand.net/shop/Tools/Electrolysis.htm

Doesn't electrolysis create Hydrogen gas? BOOM! 

haha yea. but u don't do it indoors. or you have a candle lit to burn off the hydrogen.