Method for producing a negative skin, and tool

A method for producing a negative skin, the method comprising acts of:

• providing a positive body, wherein a first surface of the positive body forms a positive mold of a negative skin to be produced, wherein the first surface comprises at least one undercut,
• applying a wax layer on the first surface of the positive body and filling the at least one undercut with the wax layer,
• placing a tool cavity on the positive body,
• coating the tool cavity on the applied wax layer with an applied layer,
• removing the wax layer to form a cavity for the negative skin, and
• producing the negative skin within the cavity, wherein the cavity is formed between the first surface of the positive body and the applied layer.