Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Carbon Fiber Frame Repair on Seat Stays

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.

Carbon Fiber Frame Repair on Seat Stays

Old 05-21-16, 02:20 PM
  #1  
SunDevilRuss
Junior Member
Thread Starter
 
Join Date: May 2016
Location: Florida
Posts: 10

Bikes: S-Works Tarmac E5

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Carbon Fiber Frame Repair on Seat Stays

I got a S-Works Tarmac E5 from a friend of mine who then shipped it to me from NY to FL via UPS. Well, he didn't pack the bike very well and now there are a lot of superficial gouges on the seat stays where parts rubbed together in transit. The LBS guys say the frame is OK to ride but to me it looks really bad.

I am wondering if anyone has done surface finish repairs to CF frames and what my options are. I have done a little internet reading and it seems clear nail polish is the common fix for chips. I also thought about slapping a couple adhesive chainstay protectors on the seat stays, but I'm not sure that's the right approach either.

No pictures. The bike is in the shop getting new cables and tires.
SunDevilRuss is offline  
Old 05-21-16, 02:32 PM
  #2  
gsa103
Senior Member
 
Join Date: May 2013
Location: SF Bay Area
Posts: 4,147

Bikes: Bianchi Infinito (Celeste, of course)

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 629 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
There are places that will do a full repair & repaint. You can search around for carbon fiber repair to get some recommendations. It really depends on how much you want to spent.
gsa103 is offline  
Old 05-21-16, 02:40 PM
  #3  
dksix
Senior Member
 
dksix's Avatar
 
Join Date: Jul 2015
Location: North East Tennessee
Posts: 1,619

Bikes: Basso Luguna, Fuji Nevada

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 4259 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
These people sale DYI kits and well as do the repairs if you send them the frame.

dksix is offline  
Old 05-21-16, 03:44 PM
  #4  
SunDevilRuss
Junior Member
Thread Starter
 
Join Date: May 2016
Location: Florida
Posts: 10

Bikes: S-Works Tarmac E5

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
That does look manageable. Hopefully I can get it in shape with sanding and reapplying a clearcoat. Thank you.
SunDevilRuss is offline  
Old 05-22-16, 02:20 AM
  #5  
Squeezebox
Banned.
 
Join Date: Nov 2015
Posts: 2,077
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 760 Post(s)
Likes: 0
Liked 1 Time in 1 Post
I'll say it again.
Building supply places like Home Depot sell a foam that comes in 4" x 100' x 1/4" rolls. It's used to fill the gap between wall and foundation when setting up walls. Perfect to wrap a bicycle and parts in for protection when shipping. It's gotta be cheap. Does anybody use wadded up newspaper for protection when shipping?
Squeezebox is offline  
Old 05-22-16, 02:41 AM
  #6  
Rowan
Senior Member
 
Join Date: Jun 2003
Posts: 16,749
Mentioned: 120 Post(s)
Tagged: 0 Thread(s)
Quoted: 1428 Post(s)
Liked 21 Times in 14 Posts
Originally Posted by SunDevilRuss View Post
That does look manageable. Hopefully I can get it in shape with sanding and reapplying a clearcoat. Thank you.
Yep, the epoxy resin or lacquer finish should have enough thickness for you to lightly sand with a fine-grit paper back to a smoother surface. But be very careful not to go too deep to interfere with the carbon strands. I gather that none of the scratches and chips have gone that deep already.

I think as the video shows, just get a can of cleaer automotive lacquer and spray that over the sanded area.

Otherwise, some creative use of pin-striping might be just as effective, appearance-wise.

Last edited by Rowan; 05-22-16 at 03:07 AM.
Rowan is offline  
Old 05-22-16, 02:45 AM
  #7  
Rowan
Senior Member
 
Join Date: Jun 2003
Posts: 16,749
Mentioned: 120 Post(s)
Tagged: 0 Thread(s)
Quoted: 1428 Post(s)
Liked 21 Times in 14 Posts
Originally Posted by Squeezebox View Post
I'll say it again.
Building supply places like Home Depot sell a foam that comes in 4" x 100' x 1/4" rolls. It's used to fill the gap between wall and foundation when setting up walls. Perfect to wrap a bicycle and parts in for protection when shipping. It's gotta be cheap. Does anybody use wadded up newspaper for protection when shipping?
I use saren wrap/cling wrap to wrap up our bikes before packing them in bike boxes or suitcases when we travel. Any bits such as the front wheel, saddle+seatpost, handlebars, can be wrapped into the package once the bike has several layers over it. That way, nothing can move, and the whole lot can be lifted out as one piece for security purposes or on arrival. The wrap provides a fairly robust protection for the finish. Some attention may need to be paid to putting something over the outer chainring teeth, although moving the chain on to it before the bike's disassembly helps there.
Rowan is offline  
Old 06-11-16, 08:06 AM
  #8  
SunDevilRuss
Junior Member
Thread Starter
 
Join Date: May 2016
Location: Florida
Posts: 10

Bikes: S-Works Tarmac E5

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
After I got the bike back from the shop (tune up, tires, cables, etc.) and cleaned up the frame it became clear the chips are indeed superficial. There are several (a lot, actually) but none penetrate to the fibers. I got some clear-coat nail polish and put about 6-8 'coats' on the chips to make sure no moisture can get through the finish. Overall the blemishes are clearly still there but the polish helps with the appearance quite a bit and everything is in good shape. Thank you for the advice, everyone.
SunDevilRuss is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
prettyshady
Classic & Vintage
20
07-26-09 07:53 AM
Alfster
Foo
31
07-19-09 03:40 PM
shabbasuraj
Road Cycling
0
06-06-08 12:54 AM
TheKillerPenguin
Foo
2
06-09-07 10:51 PM
Tom Stormcrowe
Foo
2
03-27-07 09:34 AM

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.