View Full Version : Anyone repair carbon fiber?
Anyone repair carbon fiber? I broke my fancy paddle board paddle last week and need to get it fixed. Thinking all it will take is cutting out the split portion of tubing and splicing in a new piece
fportmen45
07-30-2016, 14:22
Pic?
66441Here is the split its about 6" long
fportmen45
07-30-2016, 17:47
Depending upon how far the shaft goes in, I'd fiberglass it. Cheap, easy, light.
I might try contacting the manufacturer first. They may have good customer service for fancy stuff. Did you do that pushing off of shore?
Carbon fiber can't really be patched and return to full strength, because it's strength comes from being long strands the whole length, woven together.
Kraven251
07-30-2016, 23:27
What Ridge said, once CF has been compromised anything done to it may repair visible damage but not have near the strength. The other problem with CF is once it has cracked there are also micro-fissures that often form which will in turn create additional points of failure that are not easily detectable until it breaks.
StagLefty
07-31-2016, 10:13
Gorilla tape !!
jhood001
07-31-2016, 10:25
https://i5.walmartimages.com/asr/f67d75f2-bc73-436c-ab4c-3553418d2e51_1.abcc07f44ba4d1722730f886c8cad858.jp eg?odnHeight=450&odnWidth=450&odnBg=FFFFFF
Trolling board. I like it!
The way that shaft separated along the weave, it looks like it was poorly built. Separating the fibers is easier than breaking the fibers. It appears that the fiber cloth wasn't applied using alternating weave directions.
Trolling board. I like it!
Hey bro, I heard you liked trolling the boards, so I got you this trolling motor for your paddle board so you can troll the boards even when you're not on the boards.
Aw....I never knew you cared. That's so sweet of you.
Aw....I never knew you cared. That's so sweet of you.
I think you may have missed the reference there.
Invader zim
08-02-2016, 20:05
What about an aluminum tube epoxied over it?
Jeffrey Lebowski
08-03-2016, 05:51
Local: http://www.brokencarbon.com
What Ridge said, once CF has been compromised anything done to it may repair visible damage but not have near the strength. The other problem with CF is once it has cracked there are also micro-fissures that often form which will in turn create additional points of failure that are not easily detectable until it breaks.
Yes, Ridge is correct. That failure looks to me like there was a manufacturing defect, or just a crappy layup in their manufacture. There are some hacks out there offering repair services, but cracking again will occur and then you are out twice.
Jeffrey Lebowski
08-04-2016, 05:39
[Roll1] It isn't magic, and it didn't come rolled in tube shaft form. Have you ever seen how they made that shape? Of course there are "micro fissures" - how do you think they make intersections and angles, such as the convergence of a top tube, head tube, and seat stays? They lay up sheets at different angles and it takes a lot of sanding, glueing, and clear coating. I wouldn't want the force, such as a paddle, to be perfectly parallel/perpendicular to the layup which is what it appears you have. (Nor would I use CF for something that is going to take a lot of blind banging, which is why I am no fan of it for mtb or Cx).
Having said all that, I would try a manufacturer warranty, but after that, depending on cost vs new, it looks like a simple fix...but do what you like. :)
Waiting to hear back from the manufacturer. It's a 200-300 to get another one. I picked up a nice cheap fiberglass one to use while I'm learning to ride the board. So have I some time.
Current plan is to get a new piece of tube and 2 splices and epoxy resin the dog snot out of it and see what happens.
Jeffrey Lebowski
08-04-2016, 06:46
Why not just stick with the fiberglass?
FWIW, a good fix may exceed that. $0.02
I don't know the guy above, but was impressed when he advised against a [joint] crack I had. He later fixed a small fleet of crashed bikes for a team I knew. I do know, and can recommend, this fellow: http://velozephyr.com but good work is not inexpensive. One great project he does is take a noodle of a well-known component out there and reinforce it like crazy...but not cheap.
Why not just stick with the fiberglass?
FWIW, a good fix may exceed that. $0.02
I don't know the guy above, but was impressed when he advised against a [joint] crack I had. He later fixed a small fleet of crashed bikes for a team I knew. I do know, and can recommend, this fellow: http://velozephyr.com but good work is not inexpensive. One great project he does is take a noodle of a well-known component out there and reinforce it like crazy...but not cheap.
All the cool kids have carbon fiber!
I am planning on running the fiberglass for a while I still have issues with the stand up part my board is not the most stable but I will grow into it.
the weight difference between the 2 is profound 10 oz difference which may not seem like a lot but is noticeable on the water when you are tired
Great-Kazoo
08-04-2016, 07:28
All the cool kids have carbon fiber!
I am planning on running the fiberglass for a while I still have issues with the stand up part my board is not the most stable but I will grow into it.
the weight difference between the 2 is profound 10 oz difference which may not seem like a lot but is noticeable on the water when you are tired
Trolling motor ;)
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