Retrobike Forum Index

It is currently Sun Dec 11, 2016 3:12 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 9 posts ] 
Author Message
PostPosted: Sat Jan 07, 2012 5:13 pm 
Temporary Ban
Temporary Ban

Joined: Mon Jun 21, 2010 10:25 pm
Posts: 339
Location: lIVERPPOL
I have a set of hope M4 brakes , black and gold version
they look scruffy due to marks on the callipers and lever body's

So was wondering how you can remove all the black ano so i can polish them up.

Advice would be great as i tries just sanding it and it is hard as nails.


Top
 Profile  
 
 Post subject:
PostPosted: Sat Jan 07, 2012 7:08 pm 
Gold Trader / rb Rider / Special
Gold Trader / rb Rider / Special
User avatar

Joined: Mon Aug 31, 2009 12:26 am
Posts: 16165
Location: Rurally close.
Bleach may work. I have done this on some levers before. But the finish was a matt kind of fiinish which was quite tough. Had to use one of thiose dish scrubbing pads and lots of autosol but very nice finish.

There is another one, caustic soda i think?


Top
 Profile  
 
 Post subject:
PostPosted: Sat Jan 07, 2012 7:56 pm 
Temporary Ban
Temporary Ban

Joined: Mon Jun 21, 2010 10:25 pm
Posts: 339
Location: lIVERPPOL
cyfa2809 wrote:
Bleach may work. I have done this on some levers before. But the finish was a matt kind of fiinish which was quite tough. Had to use one of thiose dish scrubbing pads and lots of autosol but very nice finish.

There is another one, caustic soda i think?


cheers buddy , yeah i have heard of caustic soda but i imagine it would be a
paint to flush out of the brake.
Also somebody just told me oven cleaner?


Top
 Profile  
 
 Post subject: .
PostPosted: Sat Jan 07, 2012 8:29 pm 
aka Leo Swayer
aka Leo Swayer
User avatar

Joined: Wed Jun 18, 2008 7:15 pm
Posts: 6365
Location: Wales.UK
I wouldn't put any solvents anywhere near them unless they are fully stripped.
You could get them, i think the term is, media blasted?
Like shot blasting but more gentle :wink:


Top
 Profile  
 
 Post subject: Re: .
PostPosted: Sat Jan 07, 2012 8:35 pm 
Temporary Ban
Temporary Ban

Joined: Mon Jun 21, 2010 10:25 pm
Posts: 339
Location: lIVERPPOL
Grannygrinder wrote:
I wouldn't put any solvents anywhere near them unless they are fully stripped.
You could get them, i think the term is, media blasted?
Like shot blasting but more gentle :wink:


like walnut shell and what not?

Don't know anywere that does that , i wonder if hope offer a re-anodising service


Top
 Profile  
 
 Post subject:
PostPosted: Sat Jan 07, 2012 9:13 pm 
Gold Trader / rb Rider / Special
Gold Trader / rb Rider / Special
User avatar

Joined: Mon Aug 31, 2009 12:26 am
Posts: 16165
Location: Rurally close.
Yeah oven cleaner has caustic soda in it i think.

Check yellow pages - you may be able to find someone who isnt hope to re anodize them.


Top
 Profile  
 
 Post subject: .
PostPosted: Sat Jan 07, 2012 9:34 pm 
aka Leo Swayer
aka Leo Swayer
User avatar

Joined: Wed Jun 18, 2008 7:15 pm
Posts: 6365
Location: Wales.UK
I would have thought there would be loads of shotblasters in liverpool what with all the boats :D
Most powder coaters also offer a shotblasting service :wink:


Top
 Profile  
 
 Post subject:
PostPosted: Sat Jan 07, 2012 10:06 pm 
Temporary Ban
Temporary Ban

Joined: Mon Jun 21, 2010 10:25 pm
Posts: 339
Location: lIVERPPOL
Yeah i have had stuff shot blasted but once blasted they can be polished as it leaves a finish similar to sandpaper.

But media blasters i think there is one in Manchester..

May be easier seeing if hope still stock the lever body.


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jan 08, 2012 11:48 pm 
Retro Guru
User avatar

Joined: Mon Jan 02, 2012 10:04 pm
Posts: 660
Location: cornwall
i wouldnt shotblast a caliper, the resulting grit,coating&alloy dust will forever cause problems. anodising is a very hard surface finish as youve found, and any abrasive removal method will seriously eat into the alloy itself when you break through.
if this is just an exercise is tarting up a scratched finish, just aim to remove the dye, not the surface coating. it can be done with chemicals or heat, or both, search youtube, theres hundreds of ideas on there, some redneck, some spot on.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 9 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