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spray release for wax from plastic? Answered

hello there,
thanks for creating this awesome class, i will be sure to benefit from it.
I have a question directed to anyone that knows their way around a sort of different way of casting.
ready or not here it comes.....
I have 3d printed a two part mold from pla and it is intended for wax casting and then later the wax model will be used for lost wax casting in plaster of paris.
i have tried this method before but the wax always sticks very vigorously to the mold. my question is there any common household product that can be used as a spray release for the wax?
it would be greatly appreciated if someone could help me with this.