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Thread: Quick fix for carbon fiber chips, delamination, cracks

  1. #1
    MoJo Priest FatBoyOnaDiet's Avatar
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    Quick fix for carbon fiber chips, delamination, cracks



    In the video he explains how cyanoacrylate (super glue) and baking soda is used to fix carbon fiber chips on helicopter propeller blades. Seems like a neat trick for carbon fiber bike frames. Easy enough to carry a tiny bottle of super glue and baggie of baking soda for trail side work, or added to your bike toolbox.

    Someone give it a try and report back.
    Currently 3.0". With hard work and dedication I hope to see 2.8" maybe even 2.6"

  2. #2
    Ayatollah of Rock and Rollah mack_turtle's Avatar
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    What if your Evil shatters in multiple places while JRA?
    Last edited by mack_turtle; 06-11-2018 at 08:06 PM.
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  3. #3
    I came here for the Tacos redrider3141's Avatar
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    I have some background in this (composites, not bike frames or helicopter blades) but I would say that this is NOT a structural repair. At best this will help fix chips in the gelcoat/resin, probably more to prevent the nick from spreading and keep the leading edge smooth. A composites strength comes from it's ability for it to spread load through the fiber/resin matrix. This is why cheap tubs/ shower walls are thick chop strand and bike frames and other structural composites are long fiber/ continuous fiber in a stronger but thinner layup.

    If you think about it the helicopter blades probably have a much thicker wall thickness when compared to a carbon bike frame. This makes them less susceptible to a small nick causing a complete failure of the blade. Doing a superficial repair to keep the blade edge smooth is apparently acceptable. If you keep the ratio between the blade wall thickness vs allowable size of repair on the MTB frame you're probably safe, but it's probably smaller than you think.
    AntonioGG likes this.
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  4. #4
    MoJo Priest FatBoyOnaDiet's Avatar
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    Definitely superficial, not structural. I shouldn't have said cracks, got a little carried away.
    redrider3141 likes this.
    Currently 3.0". With hard work and dedication I hope to see 2.8" maybe even 2.6"

  5. #5
    Mojo Bike Part Terminator Seths Pool's Avatar
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    Quote Originally Posted by mack_turtle View Post
    What if your Evil shatters in multiple places while JRA?
    hahaha this made me laugh pretty good
    "Less yap more braap"

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  6. #6
    MoJo Bishop NachoMaster's Avatar
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    Quote Originally Posted by mack_turtle View Post
    What if your Evil shatters in multiple places while JRA?
    1) Wait till 2019 and get the good insurance plan at work
    2) Buy gallons of super glue
    3) Wrap the cracked places in an ace bandage
    4) Generously pour on the superglue and then sprinkle with the baking soda
    5) Enduro

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