Does the TCSS Sleeve Material come with the outside already anodized? What is the best way of removing the anodized coating so that I can salt water etch it?
Does the TCSS Sleeve Material come with the outside already anodized? What is the best way of removing the anodized coating so that I can salt water etch it?
Pretty sure it is a raw piece of aluminum, not anodized
It does not come anodized.
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Interesting, the piece that I got from TCSS is non-conductive on the outside. Maybe its just oxidation build up? I tried to sand it away but it's a pretty thick layer. I had to scratch it with my multimeter probes to get any kind of conductivity. See pictures below of multimeter on the sleeve material and a main body.
IMG_20160625_162415.jpgIMG_20160625_162435.jpg
Last edited by vieiv; 06-25-2016 at 07:32 PM.
Oxidation most likely. Raw aluminum forms a thin film of aluminum oxidide quite rapidly and efficiently.
What is the best way to remove it?
Last edited by vieiv; 06-26-2016 at 02:38 PM.
Yep, that's strange. I just tested my sleeve/shroud material with a multimeter too, and got the same results you have. But oddly, when I check for continuity on the inner diameter, it conducts fine. So, yeah likely a coating of oxidation, and maybe it forms more rapidly on the outside, being exposed to more airflow.
As to how to remove it, I would try sanding it off with #00 grade steel wool, or possibly 320 grit sandpaper and then the steel wool. And if you want to really polish it up to a near-mirror finish, experiment with #000 and #0000 grades.
If you want a consistent surface finish between your MHS parts and your sleeve/shoud, be sure to sand in a direction around the tube, rather than up and down. Also, here's a great video tutorial with tips and tricks by Madcow for TCSS on scratch repair for MHS parts: https://youtu.be/VV3_6DANSdM?list=PL...ljTNVLGq4F3FKT
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I ran into this problem last weekend. My shroud piece wouldn't etch. I just sanded it 300, 400 grit sandpaper. After a little work it was etching just fine.
We had this last batch bright dipped and I assume during this process a protective layer is built up or added after.
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