My plug is done and I'm about ready to lay up a mold. This will be used for prepreg so I'm using premium resin tech rdr-1902 high temp surface coat and rdr-3212 resin. I have some concerns with the surface coat. It's a bit thicker than I imagined but I guess that's good so it won't run, however after mixing a small test batch, it seems pretty slow to release air bubbles. As you can see in the pic of my plug, there are areas with vertical walls and even a few areas of negative angle. For air to release from the surface coat as I brush it on, these bubbles need to rise to the surface to pop right? So any areas that are beyond vertical with a negative angle, I would think are gonna have a hard time releasing air. I picture a bubble just rising up against the surface of the plug and staying there. I'm wondering if I should apply the surface coat in partial areas with the plug oriented so surface coat I'm applying is face up, allowing better release of air bubbles.  Do I need to bother? Or can I just brush it on the whole thing as it sits in the pic? Looks like pics got rotated 90 degrees, the pointed nose is up

It's cf. The only reason I would have to do more laminating after removal is if I need to cut the slot to remove the mold. In that case, I'll probably just put a peice of tape over the slot on the inside, fill the crack with epoxy and maybe just one strip of laminate on outside. There will be no prepreg layed over that area in the mold. Just needs to be filled to seal vacuum if I end up using the flange for partial bag. I didn't go crazy with mold thickness.
Wow, only 8 hours? That's quick. You must have used quicker hardener than I did. For the 1902 surface coat I used 9302 hardener. For the 3212 epoxy I used 9386-99 hardener which has 1 hour pot life and 24 hour cure. There was an option for faster hardener with the epoxy, but I noticed the specs were drastically lower with the quick hardener. Tensile strength, etc. were much less. I'll give it at least 24 hours before popping it loose.