New Way A-20 Demon Build Part 9, Primer Sand and Fin Gluing

Here's the before and after sanding down the filler/primer.







The flat sides were sanded smooth first. I tried to avoid the corners, it'd be easy to sand them down and raise a fuzzy edge.

The inset picture shows me lightly sanding the corner edges.

The fins were sprayed with primer/filler before gluing onto the body tube.
After sanding the fin surfaces smooth, the primer was completely removed near the root edge for better adhesion.





Here's the fin slots after the masking strips were removed. Mentioned earlier, the tape strip was a little wider than the slots so the fillets will adhere better.
The paint ridges left from the tape were sanded smooth.










The first fin was glued on.
One good thing about a square tube, it won't roll off the table.