Retrobike Forum Index

It is currently Thu Dec 08, 2016 3:24 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 5 posts ] 
Author Message
PostPosted: Mon Jul 15, 2013 12:29 am 
Old School Grand Master
User avatar

Joined: Wed Apr 12, 2006 12:33 pm
Posts: 11105
Location: The Home Of Mountain Biking, And All Great Things.
I have been looking inside my stays and I want to sort the rust out before I treat them.

I have used electrolysis in the past. I only want to do the stays (no rust on the 853 front triangle) so I will be hanging the frame over a tub with just the stays in, first the chain stays then the seat stays. I can't blast the inside after so am going to run pressurised water through to clear the detritus.

I haven't used it on gear where there was paint left, so it is presumably going to mess the paint up on the outside, but maybe I can add some nipples and run the electrolyte through the stays without bathing them?

Thoughts?


Top
 Profile  
 
PostPosted: Mon Jul 15, 2013 6:51 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
User avatar

Joined: Sat Jun 20, 2009 3:45 pm
Posts: 5261
Location: Birmingham
oxalic acid then treat perhaps?

i have had very good results with oxalic acid but never treated rust on a frame internally


Top
 Profile  
 
PostPosted: Mon Jul 15, 2013 10:53 pm 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider
User avatar

Joined: Sun May 25, 2008 11:03 am
Posts: 18215
Location: Sunny Glasgow
:shock: OH THANK GOODNESS FOR THAT. I thought it was going to be along different lines.


Much does this process cost ? cant be too expensive i would have thought :? and who or what type of company does that service ? Galvanizers ?


Top
 Profile  
 
PostPosted: Tue Jul 16, 2013 4:53 am 
Retro Guru
User avatar

Joined: Fri Jan 13, 2012 2:28 am
Posts: 1057
Location: Near Gatwick
I would go with phosphoric acid, I can't see electrolysis being very easy.
Paint on the stays shouldn't be a problem for electrolysis; I needed to cut some quite detailed bit's of 10 thou steel sheet out, after finding I couldn't do it tidily I painted the shapes on with cellulose and etched the steel away, the cellulose worked as a mask..
What were you going to do for an anode?


Top
 Profile  
 
PostPosted: Tue Jul 16, 2013 2:27 pm 
Old School Grand Master
User avatar

Joined: Wed Apr 12, 2006 12:33 pm
Posts: 11105
Location: The Home Of Mountain Biking, And All Great Things.
Whatever is unlucky enough to be under my feet!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 17 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group