Centuri Vector V #KB-2 Build, Part 6, Fiber Fin Edges

TIP: Card stock fin edges can be sealed and slightly rounded with a bead of glue.

A line of white or yellow glue is run down the edge. Use the side of your finger to smooth the round bead and remove any excess glue. Be sure the glue covers the edge completely from side to side. Make the bead as even and round as possible. The glue bead will shrink down a bit as it dries.




Don't do a glue bead on the root edge, that should remain square.

I set some masking tape sticky side up and set the fin vertically on the root edge. This allows the glue to dry without running or the fin sticking to the work surface.





After the glue dries, smooth the glue bead with 400 grit sandpaper rolled over a fingertip.
This fin glue sealing and rounding step isn't necessary, but makes for smooth edges when painting and a stronger fin.

These fins cut from picture frame mat board  have a smooth side and a slightly rougher side. They will need two shots of filler/primer, sanding between coats.

There are five fins, four are stuck down on tape with the root edges against each other to keep the paint off. The odd fifth fin is on the left.