Abstract: The invention relates to a method of producing a new and novel gel composition suitable for use in breast prostheses, including a mixture of hydroxyl terminated polybutadiene resin, diundecyl phthalate, polymethylene polyphenyl isocyanate, and dibutyltin dilaurate catalyst, allowing the mixture to stand, and curing the mixture.

Abstract: A method for fabricating breast prostheses in accordance with the invention includes the steps of forming an outer sheet to a concave configuration; forming an inner sheet to a concave configuration; bonding an intermediate sheet to a form member having a concave inner surface and a convex outer surface; sealing the inner sheet, intermediate sheet, and outer sheet together along their peripheries, thereby forming an outer chamber defined by the outer sheet and the intermediate sheet and an inner chamber defined by the intermediate sheet and the inner sheet, the inner chamber containing the form member; filling the outer chamber with uncured silicone gel; compressing the chamber to remove the air therefrom; placing the compressed chamber in a vacuum chamber to further remove any remaining air therefrom; sealing the chamber; and curing the liquid silicone into a gel.