This may seems stupid, but how long do you vaccum the bag? I mean do you make the pump work constently until the epoxy dries or you shut it off when the air is out?
…and of course do we fill the surface of the bag with any material for un-staking with the epoxy?
Generally, you leave the vacuum on until it “B” stages or starts to cure. Or we just let it run until the laminate has cured.
You used peel plys and plastics that release after curing like PE, Nylons and the the like.