Abstract: An apparatus (10) for molding a thin-wall plastic shell includes a powder box (12) and a mold box (14). The powder box (12) is positioned to an operative position wherein an opening (18) in the powder box (12) is brought in proximity to the mold surface (20) of the mold. A contoured selective charge application panel (36) has a gasket (30) about the end thereof and the selective charge application panel (36) is extended vertically from the opening (18) at variable heights to perfect a sealed surface at the opening (18) and the periphery (22) of the mold surface (20) to mask vertically extending waste surfaces (14a, 14b).

Abstract: An assembly (10) for molding a two-tone, thin-walled plastic shell (12) for parts such as automobile door panels, control and instrument panels and the like includes a charge box (24) for supplying dry thermoplastic material to separate casting surfaces (30, 32) on a heated mold (22) selectively connected to the charge box (24) during the casting process. A pressurized inflatable seal gasket (60) is connected to the charge box (24) for sealing a division surface (36) on the heated mold (22) which surface (36) separates the casting surfaces (30, 32) of the mold (22). The seal gasket (60) is attached to the charge box (24) on a divider wall (42) via a sliding member (80) which positions the seal gasket (60) longitudinally along the divider wall (42). The sliding member (80) is secured to the divider wall (42) via threaded pins (86). The gasket seal (60) may be removed and reinserted in the slider member (80) providing automatic adjustment thereof.