Anodising DIY
Printed From: Kiwi Airgunners
Category: Technical
Forum Name: Pauly's Technical Area
Forum Description: Technical information, Modifications and DIY projects are all in here
URL: www.kiwiairgunners.co.nz/forum_posts.asp?TID=1187
Printed Date: 02 Jul 2025 at 2:35am
Software Version: Web Wiz Forums 10.14 - http://www.webwizforums.com
Topic: Anodising DIY
Posted By: Pauly5
Subject: Anodising DIY
Date Posted: 20 Mar 2025 at 8:33am
| Has anyone tried anodising aluminium parts? Do you have an easy method/recipe? |
Replies:
Posted By: kruzaroad
Date Posted: 21 Mar 2025 at 6:02pm
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What ya anodizing paul? Cant help with how ya do it, but curious if its air gun parts and what and what colour. |
Posted By: nunga
Date Posted: 21 Mar 2025 at 8:09pm
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I am experimenting with this as we speak. but i am still in the research stage. The colour is a big factor on what you are wanting as well. black is fairly straight forward from what i am seeing. ------------- 2nd place HP springer - WFTF World Championships 2014 |
Posted By: tonycee
Date Posted: 21 Mar 2025 at 9:09pm
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I tried the Birchwood aluminum black and achieved a lead-grey in 2 coats. Might have darkened with multiple coats but I was happy with the effect. Certainly wasn't a black finish. ------------- tonycee |
Posted By: Pauly5
Date Posted: 22 Mar 2025 at 8:45am
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Yea i'm thinking about trying colouring gun parts, or even etching. Something to add to the look. Black is probably the colour i'd try too.
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Posted By: tonycee
Date Posted: 22 Mar 2025 at 9:27am
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What did you use to get a black finish, nunga? It is what I wanted but the Birchwood chemical didn't seem to do it. ------------- tonycee |
Posted By: nunga
Date Posted: 22 Mar 2025 at 12:36pm
What you will need is sulphuric acid diluted down to 5% in distilled water. (by weight) I use a lead sheet as the cathode that goes down the side of the container, along the bottom then back up the other side. The parts must be very very clean. You will need a power supply that you can adjust the amps to suit the surface area of the part. I think from memory it is .025 amps per 25mm of surface? you might want to google that. It will still work if you have less amps but will take longer. You can get away with an old 12V router power supply for very small parts like a trigger or something You will also need the die to get what colour you want. I use printer ink. I use the brother printer ink from their inkjet LC range like LC38BK cartraide as they are big and easy to take apart. You can use clothes die as well. or metal die if you can get it. People heat the die when coating to seal the part but you can also drop it in boiling water for 10 minutes. ------------- 2nd place HP springer - WFTF World Championships 2014 |
tonycee wrote: