De-rusting project

Hanuman · 21-05-20, 12:22 PM

I’m looking for a suitable container to do some de-rusting, and maybe some plating.

The plating is fairly easy, as I shall only be tackling jobs like brackets, fixings, etc. I have a couple of suitable boxes.
Rust removal is another matter.

Minimum spec based on the larger components to be dealt with
-Plastic/non conductive
-1.2meter long, slightly more.
-200mm wide
-200mm high
-Inexpensive
-Liquid tight base/side

I thought of using a feed trough, or low profile loft tank. Any thoughts?

John. · 21-05-20, 12:28 PM

A bath ?!

Hanuman · 21-05-20, 12:42 PM

Just too big. I’m using bits of my mother’s garden for projects, so a bath full of caustic chemicals and rusty suspension bits would be a bit intrusive.

I may have to resort to plastic welding two shorter bins together.

urquattr085 · 21-05-20, 12:54 PM

What about making a trough out of wood and lining with a thick membrane such as DPM ?

Duffy3074 · 21-05-20, 01:19 PM

I used a wallpaper immersion tank (the ones you soak prepasted paper in before hanging.

Did the Job but might be slightly smaller than what you are after

droopsnoot · 22-05-20, 06:31 PM

I used an old bath when I was stripping the front subframe for my Vauxhall, it worked quite well but then you have to get rid of the bath afterwards.

I was looking for a similar plastic box to store lengths of railway track in, and B&Q have something similar, though it's wider than you want. It was £20, so no good for me (as the track probably cost less than that, I just want to keep the dust off it and it won't fit properly in the old drawer it's in now) but was the only box longer than a metre. I can't remember whether it would be 1.2m though.

falcoron · 23-05-20, 11:03 AM

Quote:

Originally Posted by Hanuman

Just too big. I’m using bits of my mother’s garden for projects, so a bath full of caustic chemicals and rusty suspension bits would be a bit intrusive.

I may have to resort to plastic welding two shorter bins together.

You don’t need or should be using caustic to remove rust. Once you get the container fill with water and pour in basic washing soda which is basically salt
You tube electrolysis rust removal and after 24 hours emmersion all rust will be gone and the waste water which is no toxic can be dumped or if you have moss on your drive way this kills it harmlessly

SwallownAmazon · 23-05-20, 07:05 PM

Quote:

Originally Posted by falcoron

washing soda which is basically salt

NO IT IS NOT!!!!!!!

Salt is sodium chloride and is highly corrosive to iron, steel, etc.

Washing soda is sodium carbonate and is quite different to sodium chloride.

The only similarity is that they are both soluble in water!!!!

falcoron · 23-05-20, 07:13 PM

Quote:

Originally Posted by SwallownAmazon

NO IT IS NOT!!!!!!!

Salt is sodium chloride and is highly corrosive to iron, steel, etc.

Washing soda is sodium carbonate and is quite different to sodium chloride.

The only similarity is that they are both soluble in water!!!!

Ok noted! Still better and safer than caustic

SwallownAmazon · 23-05-20, 07:15 PM

Hanuman,
If you want to de-rust, tannic acid is very effective at "pacifying" the brown oxide. The ferrous oxide is converted to dark blue ferrous tannate which is to all intents inert. I have used it on my 1965 Volvo Amazon panels where rust was established and after about seven years, there has been no further appearance.
The drawback is that it would be difficult to electrolytically plate over it.

21-05-20, 12:42 PM	#3
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,006	Just too big. I’m using bits of my mother’s garden for projects, so a bath full of caustic chemicals and rusty suspension bits would be a bit intrusive. I may have to resort to plastic welding two shorter bins together. __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor

21-05-20, 12:54 PM	#4
urquattr085 Senior Member Classic Audi Club Member Join Date: May 2016 Location: Displaced Northerner in Essex Posts: 1,528	What about making a trough out of wood and lining with a thick membrane such as DPM ? __________________ 1985 WR quattro 2010 A6 3.0Tdi Allroad 2010 A3 1.4 tfsi Sport - Sold but still in the family 1984 80 Quattro - Sold many moons ago 1981 Coupe GT - Sold to buy above

21-05-20, 12:28 PM	#2
John. 4 ring whore! Classic Audi Club Member Join Date: Mar 2011 Location: Scottish Borders. Posts: 7,520	A bath ?!

21-05-20, 01:19 PM	#5
Duffy3074 4 ring whore! Classic Audi Club Member Join Date: Aug 2015 Location: Dalgety Bay, Fife Posts: 2,078	I used a wallpaper immersion tank (the ones you soak prepasted paper in before hanging. Did the Job but might be slightly smaller than what you are after

22-05-20, 06:31 PM	#6
droopsnoot Grown up member Join Date: Jun 2015 Location: South Cheshire Posts: 212	I used an old bath when I was stripping the front subframe for my Vauxhall, it worked quite well but then you have to get rid of the bath afterwards. I was looking for a similar plastic box to store lengths of railway track in, and B&Q have something similar, though it's wider than you want. It was £20, so no good for me (as the track probably cost less than that, I just want to keep the dust off it and it won't fit properly in the old drawer it's in now) but was the only box longer than a metre. I can't remember whether it would be 1.2m though.

23-05-20, 07:15 PM	#10
SwallownAmazon Grown up member Classic Audi Club Member Join Date: Jun 2017 Location: Tonbridge, Kent Posts: 511	Hanuman, If you want to de-rust, tannic acid is very effective at "pacifying" the brown oxide. The ferrous oxide is converted to dark blue ferrous tannate which is to all intents inert. I have used it on my 1965 Volvo Amazon panels where rust was established and after about seven years, there has been no further appearance. The drawback is that it would be difficult to electrolytically plate over it.