Customise your Case with Annodising

Material requirements and safety rules

Requirements
* A plastic container-$5 from Big W or Kmart;
*Sulphuric acid (battery acid is fine)-$2/litre from a battery wholesaler;
*Sodium Hydroxide (Drain cleaner)-$6 from your local supermarket:
*Sheet lead-$7/metre available from most hardware stores:
*12V DC power supply (8A battery charger)-$40 from your local auto stockist;
*Anodising dye- free samples should be available from your local anodiser;
*Assorted nuts, bolts, washers and 30A hook-up wire; and
*some thin Aluminium wire-MIG welding wire is perfect.


Safety rules
The safety rules go something like this:
* Always connect up to the annodising tank before turning on the power supply, to prevent sparking;
* Safety googles, rubber gloves and long sleeves are a must (we are dealing with acid here people, and splashing is a risk);
* No smoking, naked flames or sparks (Hydrogen is a highly explosive gas given off during the process); and
* Plenty of ventilation.
* It is advisable when working with any form of chemical to obtain M.S.D.S (Material Safety Data Sheets), these should be freely available from the manufacturer, via the net or the reseller. These will help you understand and assess any heath risks that the product/s may have, and provide first aid options if the situation should arise.


Step 1: Preparing the container
Step one is to prepare the container-turning it into an effective cathode. It is important to note that any metal immersed in the acisd should only consist of lead or aluminium. I would suggest using cathodes, to lessen the volume of aluminium sulphate being released into the acid solution. Cut the sheet lead into shape, drill 3/16" holes through the container and lead and bolt them together with the nuts on the outside so they can be used as the power connectors.


Preparing the container to act as a cathode

Preparation of container shown on the next page
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Most Recent Comments

15-04-2006, 09:29:35

Kempez
Its a great guide Peevs :)

I'm getting well tempted for a new case but lack of room restricts me at the moment. Once I get some more room then I'll buy a new case and get some annodising done :)

19-04-2006, 11:56:35

FragTek
You're last pic in the first post is of an acid washed Angel, I used to have one just like that with a black and orange wash on it...

Cheers! :D

24-10-2009, 15:39:13

mnpctech
sorry for reviving this old thread, but it's worthy of revisiting :)

24-10-2009, 15:55:51

Coopsman1
That is awesome but acid id something i dont want to play with, local companys tend to do it fairly cheap now adays

24-10-2009, 20:05:56

Drach
Great guide. Had been curious about doing this on a few parts since recently seeing it in a case mod I really liked! :)

25-10-2009, 04:16:55

Socks
isnt there an engineering company that sell a kit for anodising?

25-10-2009, 07:51:59

Marcus
Caswell :)

25-10-2009, 08:20:04

Socks
marcus to the rescue, yet again!! wooop!

25-10-2009, 10:37:49

Coopsman1

Caswell :)



Thanks Marcus!!!

I'm looking into it now

25-10-2009, 12:22:13

Marcus
Here's some more info if you want to have a crack at it at home, it's from an e-mail I got from them a while back RE sourcing suplhuric acid.

Due to health & safety retail outlets cannot supply sulphuric acid in its neat form but can sell a formula for drain cleaning. We have found over the last 5 years that a product called "Oneshot" sold in B&Q, Robert Dyas and other good ironmonger stores is the best formula for our use. It is 91% sulphuric acid and as the colourant and odouriser are both organic, these disappear quickly with use.

To use this product you need measure out 2 litres of deionised water into a plastic container capable of holding 4 or 5 litres and also able to stand reasonable temperature. You would then the 1 litre of Oneshot into the water, NOT the other way round, but do this slowly as it will generate a fair amount of heat. You now have what is termed battery acid. For anodising one part of this acid is poured into two parts of distilled water and you now have an anodising electrolyte.

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