I've been vacuum-bagging carbon fiber panels and have noticed that the side of our panel curing on our glass table comes out with streaks. The streaks don't come off when wiped down with acetone. I think this probably has to do with the surface we're laying up on. To aid in release, we apply three layers of Partall Wax to our glass worktable and let each layer cure for 5 minutes. Should we let the partall wax cure for longer? Are we not buffing well enough? Would a layer of PVA over the wax help minimize streaks? I'd appreciate any advice. 

Thanks for your advice guys! Letting the partall wax cure for an hour seemed to minimize the streaks by a lot, but it still seems inefficient compared to using a semi-perm release agent like the ones ArturK listed. I'll update this thread with the next panel I cure + chem release agent used