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PostPosted: Tue Sep 04, 2007 3:02 pm 
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Joined: Sun Oct 22, 2006 5:15 am
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I picked up a Ti stem that I wanna turn black-ish, but I do not want to paint it. Does anyone know a way to die or color Ti similar to anodizing Aluminum?


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PostPosted: Tue Sep 04, 2007 3:08 pm 
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Wouldn't like to try it on a piece of kit you want to keep without first trying it old on a piece of scrap first (if scrap titanium exists!) Hows about gun/rifle bluing? Seem to recall its some sort of steel/acid reaction so whether it will work on titanium I don't know. Don't suppose anyone has ever tried it!! Ask your friendly local gunsmith.


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PostPosted: Tue Sep 04, 2007 4:35 pm 
B.o.T.M. Winner / Feature Bike
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http://www.titaniumarts.com/pages/bikeart/bikeart.html?content=3

Leni is a bit of a specialist in this, but I feel the word specialist is very apt as it's probably a nightmare trying to anodise Ti yourself (or even ali). May be you have to have it powder-coated afterall!


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PostPosted: Tue Sep 04, 2007 6:51 pm 
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Joined: Wed Jun 29, 2005 11:18 am
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do a search, alu anodizing has been discussed on both STW & southern DH forums & apparently isnt that difficult. not so sure about Ti.
anodnized ti is cool tho :D


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PostPosted: Tue Sep 04, 2007 9:01 pm 
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anodizing is the surface oxidation of aluminium IIRC, but titanium is a pretty unreactive metal (hence it doesn't need to be painted) so I imagine that it won't work for Ti (or steel due to the large difference in oxide volume, hence why rust flakes off).

I'd say that some form of painting/staining is going to be your best bet...


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PostPosted: Tue Sep 04, 2007 9:12 pm 
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kona kid wrote:
anodizing is the surface oxidation of aluminium IIRC, but titanium is a pretty unreactive metal (hence it doesn't need to be painted) so I imagine that it won't work for Ti (or steel due to the large difference in oxide volume, hence why rust flakes off).

I'd say that some form of painting/staining is going to be your best bet...


dude, anodizing deffo works for ti, check the link pete put up ;)
headtube badge of the fat chance 10th anniversary is leni fried anodnized ti :)


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PostPosted: Tue Sep 04, 2007 9:32 pm 
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Joined: Mon Jul 16, 2007 2:49 am
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anodizing Ti is actually easier and safer than Al if I remember correctly. I use to mess with radio controled cars and little Ti and Al parts are anodized to death all the time. I'll dig out my old magazines...something like Ti can be blue anodized using batteries and Coke.


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PostPosted: Tue Sep 04, 2007 9:38 pm 
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Octsoc wrote:
something like Ti can be blue anodized using batteries and Coke.


thats how I saw it done on STW with alu parts :)


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PostPosted: Tue Sep 04, 2007 10:20 pm 
Retro Guru

Joined: Sun Oct 22, 2006 5:15 am
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Anyone got a can of Coke they are willing to part with? Please give price with shipping to the US.


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PostPosted: Tue Sep 04, 2007 11:54 pm 
B.o.T.M. Winner / Feature Bike
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I don't think I'd mind trying to anodise a 50p ali bolt- if it goes wrong, which the first few would undoubtedly, I wouldn't mind throwing it out. Not so sure about doing the same with a £100 ti stem....


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