Re: [Classicrendezvous] Restoring Anodization; Was:polishing NR/SR parts


Example: Racing:Beryl Burton

From: "swampmtn" <swampmtn@siscom.net>
To: <classicrendezvous@bikelist.org>
References: <5a.d02676c.2742057d@aol.com> <3A12A3F7.294E7E48@ixpres.com> <3A13C044.FBD4C028@camb.linst.ac.uk>
Subject: Re: [Classicrendezvous] Restoring Anodization; Was:polishing NR/SR parts
Date: Thu, 16 Nov 2000 06:46:39 -0500


Re: bead blasting...

What does it do on and around engraving? Are there any side-effects to watch for? I have a set of NR brake calipers with anodizing worn away in places, and I'd love to polish them out.

I've always wondered why Campagnolo didn't anodize seat posts... I've known people who's sweat actually pitted the post beyond useable condition! Would anodized posts pose a seizing of slipping problem within the frame?

How do you replicate that lathe-turned finish on a scratched post without turning a 27.2 into a 27.1?

Mark, I imagine The Thames at flood stage is a site to behold... but only from atop of something tall and very sturdy!

Aldo Ross


----- Original Message -----
From: Mark Stevens


> Hi All, I have access to a bead blaster here at college. It will strip anodizing
> at 120 psi to allow a high polish to be put on the aluminium . Then turn the
> pressure down to about 40 psi and with fresh beads you can replicate the dull
> sheen of anodizing. I have had great success on derailleurs and cranks.
>
> Mark 'in flooded London 'Stevens