I know when I do palm wax tarts, in silicone molds, and ice cube molds (also silicone) they have to sit for awhile before you can even attempt getting them out even with my ecosoya pb, or else they will leave some behind or crack. I am using CS's Starburst palm wax ( pillar) So I normally just leave them for a awhile. Also you can try putting them in the freezer for a bit, and than try to get them out of the mold. Good luck, its an addicting hobby! Jessica