I repainted non-skid on my deck over the summer. I used the Intedeck (sp) from interlux.It seems to have very good non-skip properties, was easy to apply, and looks great. We did a rough sand w 60 grit paper by hand over existing moulded non-skid, taped it off, primed and painted. The only issue I have noticed is the "sand" in the paint seems to rub off a little with wear and tear. I can see a very fine glitter like appearance on dark cloths after sitting/scooting around on deck. With the ease of use I'm not too worried about it.
hunter Legend 37 Semper Paratus
Formerly - Tartan 34C Yawl