In cases where the draft angle is inadequate for ejection of the part the result is a tendency for the part to stick in the mold. If a part is sticking in the mold the proper draft angles and surface must be selected based on the specific material being molded.Before a mold is built a thorough draft analysis must be conducted to ensure that the part will be moldable. To overcome a lack of draft it may be necessary to add a secondary coating to the mold surface to prevent the part from sticking.