From a warm oven pbtp polyester tgic starts to get a velvet fuzzy look at 3-5 minutes (depending on small or big bullets) and flows out maybe 30 seconds later. My understanding is that happens well befort part metal temperature is reached. Heat gunning the bullet surface concurs, so I allow 8-12 minutes from a hot start for the bullet surface to reach curing temperature and add at least ten minutes to that. Ymmv, this stuff is pretty forgiving, and the hf epoxy seems to be as well. FortuneCookie45LC on utoob has the hf red coating and baking down to a science, worth a look.