loading
1CommentsJoined January 19th, 2017

Tell us about yourself!

Complete Your Profile
  • hommie17 commented on art medlar's instructable Repairing a Carbon Fiber Bicycle Frame3 months ago
    Repairing a Carbon Fiber Bicycle Frame

    Nicely done. I have repaired fiberglass boats which is similar to what you did. Three suggestions I would make is; (1) I was once told to initially fill the inside of the hole with aluminium foil so you have a backing for the epoxy. another way would be to inset a small piece of cf cloth that is saturated with epoxy into the hole and pull it up to the hole so it acts as a backing which also ensures you have the correct form of the stay being repaired. You can also use the good seat stay as a mold to make the backing from and once the piece has dried you can put epoxy on it and inset it into the hole (there is a wax you can use so backing piece will not stick to the good stay when making it). Hope this makes sense. Just pouring the epoxy into the hole means that the glop inside may...see more »Nicely done. I have repaired fiberglass boats which is similar to what you did. Three suggestions I would make is; (1) I was once told to initially fill the inside of the hole with aluminium foil so you have a backing for the epoxy. another way would be to inset a small piece of cf cloth that is saturated with epoxy into the hole and pull it up to the hole so it acts as a backing which also ensures you have the correct form of the stay being repaired. You can also use the good seat stay as a mold to make the backing from and once the piece has dried you can put epoxy on it and inset it into the hole (there is a wax you can use so backing piece will not stick to the good stay when making it). Hope this makes sense. Just pouring the epoxy into the hole means that the glop inside may break off at some point and rattle inside the tube. and (2) instead of making one sheet of cf cloth with 4 wraps I suggest using 4 individual wraps, each one slightly larger than the previous piece, by about and eighth of an inch along the edge. Place the smallest one first and then the next larger one, etc. This way you won't have to worry about excess epoxy or loose threads. There are rollers you can buy to make sure the epoxy soaked cf cloth lays flat and any excess epoxy will be squeezed out. and (3) use acetone to clean up. Also, as a footnote, for boats gelcoat is used which is harder than enamel paint and waterproof. It is harder to to use but you can mix and match different colors to get a match close to the original color.

    View Instructable »