Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 08-01-12, 11:34 AM   #1
apr
Newbie
Thread Starter
 
Join Date: Aug 2012
Bikes:
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Advice on painting a steel bike frame

Hi there,
I have an old bike frame made by Sun Worksop which I decided to do up as a summer project. The old paint on it was flaking off and there were several patches of rust so I decided to remove the old paint and start again from bare metal. Incidentally, the old paint was not the original, I think it was just grey Hammerite put on by a previous own so nothing special.

The old paint has nearly all been removed now, so I need to decide what to buy to repaint it with. A friend recommended that I use an acid etch primer to get a more durable coat of paint, looking online I found several brands that make this (Upol, Clostermann, Autotek...) but have no idea which would be best. I also have no idea what brand would be best to use for the topcoat/clearcoat.

Any tips on which products to go for, or on how best to paint the frame to achieve a decent/durable finish would be greatly appreciated! Also apologies if this is in the wrong forum, I'm new here

Thanks!
apr is offline   Reply With Quote
Old 08-01-12, 11:38 AM   #2
Kimmo
bike whisperer
 
Kimmo's Avatar
 
Join Date: Dec 2009
Location: Melbourne, Oz
Bikes: velospace.org/viewcluster?c=873
Posts: 7,115
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
If you're using spraycans, you won't get a really durable finish.

AFAIK, etch primer is only necessary for aluminium; for a steel frame a metal primer is the go.

I suppose you want an epoxy-based paint to maximise durability. Clear over the top should help.
Kimmo is offline   Reply With Quote
Old 08-01-12, 03:23 PM   #3
b1g bleu
Senior Member
 
Join Date: Sep 2008
Bikes:
Posts: 114
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Check out the Rustoleum line at home depot, they have a boatload of new colors. The hammered finish has held up quite well on my steel railings. IDK if clear is gonna help, I thought baked on paint was the most durable, talk to a local body shop.
b1g bleu is offline   Reply With Quote
Old 08-01-12, 03:51 PM   #4
Crankycrank
Senior Member
 
Join Date: Jan 2009
Location: San Diego, CA
Bikes:
Posts: 786
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 27 Post(s)
You can also find some auto paint suppliers that sell two part urethane paint spray cans. It gives you something like a 12 hour or ?? window of time to apply several coats after activation before it cures in the can. I can't remember any specific sites to find this but some googling will probably turn up something. Should provide a much more durable finish than any consumer rattle can paint.
Crankycrank is offline   Reply With Quote
Old 08-01-12, 04:03 PM   #5
SlowCrank
Senior Member
 
Join Date: Mar 2011
Location: Portland, OR
Bikes:
Posts: 76
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Why not get it powder coated?
SlowCrank is offline   Reply With Quote
Old 08-01-12, 08:02 PM   #6
Kimmo
bike whisperer
 
Kimmo's Avatar
 
Join Date: Dec 2009
Location: Melbourne, Oz
Bikes: velospace.org/viewcluster?c=873
Posts: 7,115
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
+1 powder coat, unless it's a nice lugged frame (PC's thickness hides detial). It's a bit of a waste of effort if you use spraycans.

Quote:
Originally Posted by b1g bleu View Post
The hammered finish
Someone once talked me into painting a bike with Hammerite... shouldn't have listened. Hated the finish.

On the other hand, if you're chasing tiny aero improvements and aren't concerned about the weight, it'll create a boundary layer
Kimmo is offline   Reply With Quote
Old 08-02-12, 06:44 AM   #7
apr
Newbie
Thread Starter
 
Join Date: Aug 2012
Bikes:
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I managed to find a 2 part urethane clear coat spray can by a company called spraymax, unfortunately it seems to be MUCH more deadly than normal spray paint so I think I will have to avoid that... I live in the UK btw so can't use home depot for paint supplies. The lugs on the bike are nice (see pictures) so I would prefer not to lose detail by powdercoating.

Attached Images
File Type: jpg WP_000108.jpg (92.6 KB, 12 views)
File Type: jpg WP_000109.jpg (87.5 KB, 8 views)
apr is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 02:48 PM.