Thread: Who uses molasses rust removal?

Originally Posted by POD

Hoping to get some info from those who have done this; I have got onto a heap of old milk cans that have been sitting in a dairy shed for decades, mostly in good nick but all fairly rusty. One of them will be my new mailbox and a few others will be gifts. I've set up a molasses tank (200L plastic feed bin, 20L molasses diluted in water) and it certainly eats the rust, but I can't find any definitive info on the best way to treat the metal when it comes out of the tank. The first can was in the tank for about two weeks, I rinsed the molasses off with a pressure washer when I took it out, then left it to drain, didn't get time to get back to it for a couple of days and of course there's a lot of surface rust.
Obviously I have to be prepared to do something with it straight away when it comes out (I foolishly took the first one out when I barely had time to rinse it and then couldn't get back to it for days) but even then, washing off the molasses leaves me with wet, bare metal. How do the vintage enthusiasts proceed from this stage?
milk can surface rust.jpg

You need to wash & dry it fairly quickly.
You can watch it rust when it comes out as it's so clean, even if it's dry.

I treat with phosphoric acid (rust convertor) which holds the rust at bay while you get time to paint.

I tend to wear gloves when handling parts straight out of the tank, if you get the molasses on your hands it's difficult to get rid of the smell despite multiple washes. You almost have to 'wear' the smell off......


Colin

What gromit said.

Get some deoxidine from the big green shed or any decent hardware store and follow the instructions.

Ok will give that a go, I think I even have a bottle of deoxidine that has never been used.

I've been using it for about 25+ years. As has been said, steel will get surface rust on it as you watch.

Getting Rid of Rust - I haven't updated this page in over 15 years!

What everyone else said. Molasses is great. All new surfaces rust rapidly, so do something quickly to sort that. If you have a farm supply mob nearby they have the cheapest molasses, apparently cows like it. Go figure.

Here is a link to cover off this topic….he does a great job as well on plating and restoring a series land prover……

Rust Removal Methods Explained - YouTube

Originally Posted by POD

Hoping to get some info from those who have done this; I have got onto a heap of old milk cans that have been sitting in a dairy shed for decades, mostly in good nick but all fairly rusty. One of them will be my new mailbox and a few others will be gifts. I've set up a molasses tank (200L plastic feed bin, 20L molasses diluted in water) and it certainly eats the rust, but I can't find any definitive info on the best way to treat the metal when it comes out of the tank. The first can was in the tank for about two weeks, I rinsed the molasses off with a pressure washer when I took it out, then left it to drain, didn't get time to get back to it for a couple of days and of course there's a lot of surface rust.
Obviously I have to be prepared to do something with it straight away when it comes out (I foolishly took the first one out when I barely had time to rinse it and then couldn't get back to it for days) but even then, washing off the molasses leaves me with wet, bare metal. How do the vintage enthusiasts proceed from this stage?
milk can surface rust.jpg

I used FERONITE for rust removal.
It is a natural mix and works way better than Molasses I recon.
I naturalises the rust in no time at all.

It is available from boat builders and other places but that is where I bought mine from.

> I naturalises the rust in no time at all.

and what is "naturalises the rust" ?
I'm familiar with reducing the rust, as in a gain of electrons by the iron but not "naturalising" it :-)

Mike