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Graeme
09-07-10, 07:39 PM
Is anyone in the know when it comes to anodising aluminium parts? Can these be reanodised if the finish is wearing thin or do they have to be stripped first? Would it be easier just to key them up and wet paint them or even powder coat? The parts in question are a pair of vernier pulleys which are the same but from different sellers and the condition difference is noticeable, I want them to look new and matching through the cut-out belt cover

Thanks Graeme

mk1nova_rich
09-07-10, 09:37 PM
http://en.wikipedia.org/wiki/Anodizing

i have just had a quick read through this, and it tells you that anodising increases the natural surface oxide layer so i would imagine that to achieve a good finish you would need to strip them first, in order for the new anodising to work properly. Have a read through this article it may give you the info you need

Graeme
10-07-10, 07:13 AM
Cheers after reading that, I think I'll have to either paint them or replace them, nice one Bruva +rep

Earl Grey
10-07-10, 10:50 AM
Why not have a search for local anodizing specialists? It shouldnt be too expensisive to have your pulleys done. I was looking into buying all the gear to do it myself last year, its actually quite a simple procedure for the average DIYer...

Graeme
10-07-10, 11:09 AM
Thanks for tip

Rick Draper
10-07-10, 02:53 PM
I know a good anodizer, pm me for info.

16v Nova Kev
10-07-10, 06:05 PM
i was looking at a 55quid home anodiser on e bay.

Steve0011
10-07-10, 08:15 PM
just had a good ol read on this (various google searches) looks ok for smaller parts but i dont imagen you could do an inlet manifold too easily??

even if you could, what would the implications be of anodising the internal surfaces of such a part?? OR would it make the manifold work better i.e coating the surfaces with a smooth finish?

a black anodised inlet would look rather cool dont you think?

djbrowney
10-07-10, 08:20 PM
get them zinc coated :)

mk1nova_rich
10-07-10, 09:16 PM
ideally you need a smooth machined surface to achieve good results with anodising. I dare say that inlet manifolds and the like are too rough for the process to work properly

novarally
10-07-10, 09:19 PM
just had a good ol read on this (various google searches) looks ok for smaller parts but i dont imagen you could do an inlet manifold too easily??

even if you could, what would the implications be of anodising the internal surfaces of such a part?? OR would it make the manifold work better i.e coating the surfaces with a smooth finish?

a black anodised inlet would look rather cool dont you think?

It won't work on an inlet manifold as that is cast from alloy, not machined.

I've had loads of stuff anodised, it is possible to get things re-anodised, and even to change the colour.

I wouldn't bother with the DIY kits. Find a local firm that does it and most of them will stick small bits in with a batch they are doing and charge very sensibly for it.

Graeme
10-07-10, 10:16 PM
Cheers Colin

Steve0011
10-07-10, 10:19 PM
Cheers Colin

+1 :thumb: