HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 19 posts ] 
Go to page 1, 2  Next
Author Message
PostPosted: Tue Aug 06, 2013 6:49 am 
Offline
User avatar

Joined: Wed Oct 31, 2007 10:32 pm
Posts: 7446
Location: Los Angeles
I've tried a bit of searching and was unable to find anything definitive. I'm wondering if any of the experts on WW, maybe a few from the industry, can offer a few tips.

I would like to decay/destroy an anodized finish on aluminum. This isn't removing the anodized finish completely, but decaying it/destructing it so it no longer looks clean and attractive. I would like it to look the opposite of clean/attractive, which would be closer to dirty/unattractive. Ideally, I want the end result to look terrible and corroded, but still have a relative reliability that the finish will not decay further past the point in which I can stop it (if that is possible?) and it won't 'rub off' on clothes or other components when the part is actually put to use.

Any help on this would be appreciated. I'm hoping to make this a DIY/home project, so any materials or techniques that can be done "in the home" would be ideal.

Thank you in advance for your help on this.

_________________
Exp001


Top
 Profile  
 
Posted: Tue Aug 06, 2013 6:49 am 


Top
  
 
PostPosted: Tue Aug 06, 2013 7:07 am 
Offline
Administrator
User avatar

Joined: Mon Jun 02, 2003 8:17 am
Posts: 6650
Location: Drenthe, Holland
I know of a few degreasers that could do that. Very popular in Holland is Dasty kitchen cleaner, it is dirt cheap, but eats almost everything. muc off is a good candidate as well. I guess that that is because there is lye in it.

_________________
'Tape was made to wrap your GF's gifts, NOT hold a freakin tire on.'

Follow me on twitter. I try to be interesting ;)
On Facebook!


Top
 Profile  
 
PostPosted: Tue Aug 06, 2013 10:33 am 
Offline
User avatar

Joined: Tue Dec 04, 2012 10:34 am
Posts: 23
Location: Leeds, UK
Caustic Soda or get a Rotary Wire brush thing for your drill?

We anodise at work, getting it stripped to halfway would take a lot of guess work and is generally not done. You would need to know the thickness in microns of the coating to time the striping process. If you do use caustic soda dont soak it just rub it, depending on the alloy you could end up with a sieve otherwise...


Top
 Profile  
 
PostPosted: Wed Aug 07, 2013 7:02 am 
Offline
User avatar

Joined: Wed Oct 20, 2010 5:56 am
Posts: 193
Is this like distressing furniture? Whack it with a dirty old chain and then rub it with mineral spirits on a greasy rag.


Top
 Profile  
 
PostPosted: Wed Aug 07, 2013 7:24 am 
Offline

Joined: Mon Jan 12, 2004 12:32 pm
Posts: 3628
Location: UK & WEST AFRICA
Oven cleaner's good for taking off anodising, but taking it to distressed would be difficult.


Top
 Profile  
 
PostPosted: Thu Aug 08, 2013 7:08 pm 
Offline

Joined: Sun Nov 06, 2005 7:27 pm
Posts: 277
Tape over all of the logo's with electrical tape so it looks like a stolen bike. Add hipster hair, tats and colored rims, and you're good to go. :)

_________________
“Tuco” in The Good, The Bad and The Ugly, “If you save your breath I feel a man like you can manage it. And if you don't manage it, you'll die. Only slowly, very slowly old friend.”


Top
 Profile  
 
PostPosted: Fri Aug 09, 2013 7:05 pm 
Offline

Joined: Sun Mar 23, 2008 7:31 pm
Posts: 332
If you want to uglify it without affecting strength, why not just take some similar color (black, dark gray, gray, etc.) spray paint and just randomly spray it a little to make it look similar but splotchy and ugly. Then, later if you wanted to restore it to nice, you could probably remove the paint without ruining the original anodizing.

If you really want to permanently 'distress' it, have you tried just taking some sandpaper to it?


Top
 Profile  
 
PostPosted: Fri Aug 09, 2013 7:13 pm 
Offline
User avatar

Joined: Wed Oct 31, 2007 10:32 pm
Posts: 7446
Location: Los Angeles
Sandpaper will probably be used, but adding paint is no-go: I don't want to add unnecessary weight to produce an effect. :wink:

_________________
Exp001


Top
 Profile  
 
PostPosted: Mon Aug 12, 2013 11:51 pm 
Offline

Joined: Sun Mar 23, 2008 7:31 pm
Posts: 332
Quote:
Sandpaper will probably be used, but adding paint is no-go: I don't want to add unnecessary weight to produce an effect. :wink:


:thumbup:


Top
 Profile  
 
PostPosted: Tue Aug 13, 2013 12:17 am 
Offline
User avatar

Joined: Mon Jan 21, 2008 10:36 pm
Posts: 602
Prend, sounds interesting. Do you have a picture showing what you are looking for/expecting it to look like at the end?

_________________
"Sacred to the god Aesculapius"


Top
 Profile  
 
PostPosted: Tue Aug 13, 2013 2:02 am 
Offline
User avatar

Joined: Mon Feb 19, 2007 3:44 am
Posts: 1643
Location: Canada
prendrefeu wrote:
Sandpaper will probably be used, but adding paint is no-go: I don't want to add unnecessary weight to produce an effect. :wink:


Weight, in some way, is un-attractive, so it meets your criterias ;)

Louis :)


Top
 Profile  
 
PostPosted: Tue Aug 13, 2013 5:25 am 
Offline

Joined: Fri Feb 10, 2012 4:27 pm
Posts: 255
heres an idea:

use masking liquid ( a type of silicon liquid that dries to become a mask) to get that 'random' effect on the frame, then use the methods described on the unmasked portions?


Top
 Profile  
 
PostPosted: Tue Aug 13, 2013 5:30 am 
Offline
User avatar

Joined: Wed Oct 31, 2007 10:32 pm
Posts: 7446
Location: Los Angeles
@Tranzformer
Sadly, not exactly. It's a bit hard to find examples of this on the internet because most people (let's just assume nearly all) who do anodizing want a nice, clean finish. Nice pictures end up on the internet. Ugly examples don't.... and I'm seeking ugly in this instance. The closest example I could find that come close is the following, pulled from a recently completed eBay listing for some KCNC brakes that the owner messed up on:

Image

It's awfully close to what I'm looking for. Perhaps with a bit of the original color degraded, maybe if it started off as gold or red, the end result would look stained/rusted and in decay even though it's aluminum. The same could be done for the seatpost and stem (even the crank). A sort of beautiful ugly.

The purpose? When the build actually comes together I'll post a background on it, but a brief description would be "unattractive urban high performance stealth bike."

I figured I would ask around to see if anyone has attempted similar intentionally. Usually when chemicals are used to clean off the anodized layer, the chemicals are washed away along with what was removed. In this case I want to keep the look and not have the harsh chemicals continue to eat into the metal, threatening the strength of the metal. I don't know too much about metals/chemicals and want to learn more.

At the moment I'm debating whether to take this degraded route, or move more towards a subdued 'gunmetal' all around look.

@davidalone

Masking liquid?! I'm intrigued! Do you have more information about this. I'm already thinking I could use that same technique for other purposes too!
Wow!


Thanks for the ideas everyone, it's helpful.

_________________
Exp001


Top
 Profile  
 
PostPosted: Tue Aug 13, 2013 5:48 am 
Offline

Joined: Sat Dec 18, 2010 11:54 am
Posts: 49
Location: Brisbane, AU
So you're kind of going for the cycling version of a rat bike? This sounds really interesting!

The only method that I know will work for sure would be to create some kind of harsh environment that will accelerate the degradation. At work we do a lot of testing for things like galvanic corrosion in a salt spray rig....basically just a sealed enclosure at high temperature with a continual mist of salty water. Pretty much anything will corrode eventually.

The benefit of doing it this way would be that you could observe the changes over a longer period of time and remove the parts whenever they've achieved the look you're after.


Top
 Profile  
 
PostPosted: Tue Aug 13, 2013 7:06 am 
Offline

Joined: Tue Jan 22, 2013 6:23 am
Posts: 240
You might try spraying Greased Lightning Cleaner out of a spray bottle. Spray it on, let is sit for a minute or two, then wash it off, and repeat until they look like you want.

http://www.rcnitrotalk.com/de-anodizing ... -aluminum/


Top
 Profile  
 
Posted: Tue Aug 13, 2013 7:06 am 


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 19 posts ] 
Go to page 1, 2  Next


Who is online

Users browsing this forum: mentok, psbot [Picsearch] and 6 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:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Anodized Cog Spacers?

in Road

whydobearsxplod

2

321

Wed Aug 14, 2013 12:51 am

Razor View the latest post

There are no new unread posts for this topic. Removing decals from anodized cnc'd parts

in MTB

trychle

3

327

Wed Oct 30, 2013 4:24 pm

trychle View the latest post

There are no new unread posts for this topic. That beautiful tuned red anodized Dura Ace rear mech

[ Go to page: 1, 2 ]

in Road

Svetty

20

3166

Sat Dec 07, 2013 8:38 am

Ypsylon View the latest post

There are no new unread posts for this topic. LOOK 695 components to finish the build

in Introduce Yourself / Gallery - Please use metric weights.

slick1

14

1430

Sat Apr 05, 2014 6:12 pm

Qman View the latest post

There are no new unread posts for this topic. Shimano 105 5600 STI faulty finish.

in Road

alanjob

6

457

Sat Nov 16, 2013 1:39 am

alanjob View the latest post


It is currently Thu Apr 17, 2014 9:14 am

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB