with fibers or metal specifically preferred for automotive type instrument panels are acryclonitrile butadiene styrene abs styrene maleic anhydride dylark and modified polyphenylene oxide noryl particularly preferred for blow molding rigid substructures is noryl manufactured by general electric particularly preferred for injection molding is dylark manufactured by arco chemical a finish layer 14 generally made of a textured vinyl resin sheet covers instrument panel 10 finish layer 14 may be preshaped or integrally moldedonto instrument panel 10 between finish layer 14 and rigid substructure 12is an expanded foam material 18 manufactured from polyurethane precursors the materials and methods for manufacturing a closed mold foam panel are taught in u s pat no 4 303 728 and are incorporated herein by reference alternatively a self skinning foam may be used in place of finish layer 14 in this instance the foam provides a finished appearance and adheres to rigid substructure 12 mold tool 20 shown in fig2 and 3 comprises hydraulic press 26 attached to first die 22 and second die 24 first die 22 is stationary and has an interior surface shaped to receive finish layer 14 second die 24 has an interior surface shaped to receive rigid substructure 12 rigid substructure 12 has been molded to include an unsupported section containing integral ducts 16 and channel 17 finish layer 14 has been premolded in the shape of instrument panel 10 finish layer 14 is placed within first die 22 first die 22 includes vacuumchannels 33 which communicate with vacuum source 34 as shown in fig3 vacuum source 34 applies a vacuum to channels.