Mold for Creating Negative Draft Surfaces in Molded Items and Method of Molding

A method for molding a bathtub including at least one negative draft angle encroachment within said bathtub, said method comprising the steps of:

• (a) substantially covering the molding surfaces of a one-piece bathtub mold with a material to be molded while said material to be molded is in substantially fluid form, wherein said mold comprises a sump, walls extending beyond said sump, and at least one encroachment, wherein said sump comprises a sump front wall and a sump back wall, and wherein said mold forms said sump front wall to reflect a negative draft angle of approximately 35 degrees and forms said sump back wall to reflect a negative draft angle of a magnitude not greater than the magnitude of the draft angle of said sump front wall, said encroachment comprises at least one of one or more shelves and one or more seats, and wherein at least one said encroachment reflects a draft angle that is negative with respect to a direction of pull parallel to the plane defined by said rear wall;
• (b) allowing said material to harden to substantially solid form such that at least a portion of said material is molded into a bathtub;
• and
• (c) removing said material from said mold by one or more of:
• a) pulling;
• (b) tilting;
• or
• (c) lifting
• without breaking said mold or said material.