spray paint a chainring...?

[Frank9755]

I want a black chainset for a white tandem.  I can only get the right size outer ring in sliver. 

Any reason why I couldn't spray paint it, when it is clean and new?  Obviously not the teeth.

I expect it won't last forever, but that doesn't matter.

[fruitcake]

I think I'd wait for a black one to become available, or use the silver one as is. Any non-factory paint will rub away and chip quite easily. Rattle can paint generally doesn't have great adhesion on unprepared alu and an etch primer may be an expensive solution. 

[PhilO]

There are a few 'DIY Anodising' videos on YouTube...  Might be worth considering?

Do report back if you do try it! 

[Frank9755]

Job avoided 
Just had a call from Bob at Spa who read this post and made the connection with the order he was getting ready for a tandem chainset with one silver ring. He is now ordering me a TA black ring, so I don't need to mess around with rattle can!
Thanks very much Bob!