I finally got around to continuing the finishing process on a Forerunner (foam cores given to me by Tom Farmer himself) that I started building 18-19 years ago. Yes, I know, that's a long time for it to be a hanger queen - life sometimes gets in the way.
I don't remember much of how I actually finished it, other than a few coats of Minwax Polycrylic (water-based), covered everything with silkspan using Polycrylic, sanded, wiped down, and used a Preval sprayer for at least one coat of, I think, auto primer. After that, I set it aside to dry & gas off in preparation to start sanding most of it off. Then life happened. Now, here I am, attacking it with 220, then 320 grit, sandpaper to knock off as much as I can.
This....is going to take a while. The nice thing is that the primer just powders off. Only issue is having to continually wipe off the fine sanding dust from the surface.
Steve