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Table top epoxy resin/hardener for carbon fiber?

Old 09-07-17, 09:01 PM
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Panza
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Table top epoxy resin/hardener for carbon fiber?

Is it safe to use Table Top Epoxy Resins that I can buy on Amazon for carbon repair on bikes? Or is there some sort of special epoxy that I should be using?
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Old 09-07-17, 10:00 PM
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Originally Posted by Panza View Post
Is it safe to use Table Top Epoxy Resins that I can buy on Amazon for carbon repair on bikes? Or is there some sort of special epoxy that I should be using?
I kind of doubt it. That stuff is probably formulated for clarity rather than bonding. A couple friends have built carbon fiber frames in their garages and they used West System epoxies, available at better boating supply places (and Amazon).

You might find this article of interest: https://www.sheldonbrown.com/rinard/carbon_fiber.htm

FWIW: I would consult with a qualified professional before attempting any frame repair beyond merely cosmetic. You don't want a repair causing a failure at another point on the frame.
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Old 09-08-17, 07:36 AM
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Originally Posted by Jeff Wills View Post
I kind of doubt it. That stuff is probably formulated for clarity rather than bonding. A couple friends have built carbon fiber frames in their garages and they used West System epoxies, available at better boating supply places (and Amazon).

You might find this article of interest: https://www.sheldonbrown.com/rinard/carbon_fiber.htm

FWIW: I would consult with a qualified professional before attempting any frame repair beyond merely cosmetic. You don't want a repair causing a failure at another point on the frame.
Thanks, I'll steer away from tabletop laminant and I'll search for a carbon/fiberglass resin. I looked up West but their epoxy has a yellow tint to it, carbon/fiberglass/kevlar resin it will be!
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Old 09-08-17, 08:35 AM
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the catalyst that kicks off the epoxy to begin its chemical curing not going to be hard enough when cured?
have you tested a sample mix?
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Old 09-08-17, 10:41 AM
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Originally Posted by fietsbob View Post
the catalyst that kicks off the epoxy to begin its chemical curing not going to be hard enough when cured?
have you tested a sample mix?
I opted for a carbon/kevlar/fiberglass mix. So I won't be purchasing the table top laminate epoxy.

I did experiment with an adhesive epoxy before and that was terrible btw. : ) It was very thick to work with and hardened too soon. When it dried it was soft and rubbery. It also dried opaque.
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Old 09-08-17, 11:02 AM
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If this is for the Pinarello frame, just use automotive clear coat for the divots in the epoxy. Build up coats and wet sand.
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Old 09-08-17, 01:33 PM
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We have Boats to repair here so the Marine hardware store has Epoxy and polyester resin and their associated catalyst, by the gallon.
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Old 09-08-17, 01:40 PM
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These folks can make sure you have the right product:


AeroMarine Products, Inc.
8659 Production Avenue
San Diego, CA 92121
www.aeromarineproducts.com


Toll free phone: 1(877)342-8860
Fax 1(619)374-7278
Local phone 1(858) 689-1100
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Old 09-08-17, 03:49 PM
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Originally Posted by 02Giant View Post
If this is for the Pinarello frame, just use automotive clear coat for the divots in the epoxy. Build up coats and wet sand.
note, even with professional repairs, I have not seen a picture of a major repair that was not visible to some degree. even with a repaint. I think this is because any repair is adding material....even with vacuum bagging.
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Old 09-08-17, 03:56 PM
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The problem is that it seems like you can't buy "nice" epoxy by the ounce. Even a quart would make many frames. I've found this shopping for a finish for my bamboo project. I lined up a guy I know with a boat to just give me a few squirts.
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Old 09-11-17, 05:44 AM
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Originally Posted by Darth Lefty View Post
The problem is that it seems like you can't buy "nice" epoxy by the ounce. Even a quart would make many frames. I've found this shopping for a finish for my bamboo project. I lined up a guy I know with a boat to just give me a few squirts.


That probably could have been worded better.
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