I'm going to make an Alien Pod as an art project. Normally I would create the basic shape using foam, wood or clay, and then pour the resin over the top and harden it with a UV lamp, leaving the scaffold/structure in place inside a resin shell.
This time I'm looking to make a model that is translucent, so I need to be able to remove the structure that it's built around afterwards.
Most of this can be done easily simply by leaving a hole in the underside and breaking the scaffold up with a knife and pulling it out. But I need to make sure that whatever is actually touching the resin will peel off of it without leaving bits behind. Which rules out things like paper or foil.
Is there something that I can wrap around the scaffold that will not stick, or which can be easily pulled off, preferably something that can be painted on or which comes in sheet form?
Molding silicone is out, as it drips off before setting, so I just end up with a puddle at the base.