source: https://groups.io/g/nw-windtalk/message/74268

Quote:

My front wing has a decent size chip that I wanted to fix. When I talk about decent size, I am not talking about a golf ball size missing from the wing, but big enough I think it was disturbing the flow. I was thinking about using thickened epoxy but Brice Peterson from Sailworks suggested me to use carbon fiber dust and crazy glue. I had a piece of carbon fiber laying around so I filed it for 5 minutes with a metal file and I created enough dust for the project.

I mixed two drops of crazy glue (I have the gel type) with just a little bit of the dust. I thought the glue would dry quick but gave me enough time to apply in four different spots.

I waited around an hour (I have too many projects going on at home) and then dry sanded the spots with 300 wet sand paper and a little block. I decided to go dry to remove more product (I would not try it with 100/150/220 regular sandpaper unless y have a big chunk to remove (big=the dice of half rice).

I would do few strokes and clean the area with my finger until everything was smooth.

when I was done dry sanding, I wetted the sandpaper and lightly sanded the whole wing.

I am very please with the result. The CF dust and crazy glue mixture is totally black. Two chips are unnoticeable and the other two you need to look for them (I could do a second round to make it totally smooth but I am too lazy/busy for that).