"Make sure you have a degree or two of draft angle first then spend a little more time on the mold, coat it with epoxy resin to fill all grain, let cure then sand.
Now apply a second thin gloss coat, set level somwhere and cure- no
heat,it makes bubbles. When cured use real honest to gosh mold release wax and
wait an hour or two between each of the four coats. Mist twice with PVA (Part-All)
and let dry. Lay up the stator.. It will fall out of the mold when cured."