Abstract: A vehicular slider window assembly includes at least one fixed window panel having an opening, and upper and lower rails fixedly disposed at the at least one fixed window panel. A movable window panel is movable along the rails between a closed position and an opened position. A perimeter seal is disposed at a surface of the fixed window panel, with the perimeter seal providing a continuous sealing element that circumscribes the opening and that is configured to seal against a surface of the movable window panel when the movable window panel is closed. The perimeter seal includes elongated sealing portions having respective elongated sealing lips disposed along respective base portions. The perimeter seal is formed via a multi-shot injection molding process, with the base portions formed via a first shot injection molding process and the sealing lips formed along the base portions via a second shot injection molding process.

Abstract: A vehicular slider window assembly includes at least one fixed window panel having an opening, and upper and lower rails fixedly disposed at the at least one fixed window panel. A movable window panel is movable along the rails between a closed position and an opened position. A perimeter seal is disposed at a surface of the fixed window panel, with the perimeter seal providing a continuous sealing element that circumscribes the opening and that is configured to seal against a surface of the movable window panel when the movable window panel is closed. The perimeter seal includes elongated sealing portions having respective elongated sealing lips disposed along respective base portions. The perimeter seal is formed via a multi-shot injection molding process, with the base portions formed via a first shot injection molding process and the sealing lips formed along the base portions via a second shot injection molding process.

Abstract: An apparatus for forming a frame including a rigid thermoplastic portion and a resilient portion defining a lip seal. In particular, a core/cavity mold assembly is provided, wherein the rigid thermoplastic portion is formed, by opening the mold assembly while maintaining the rigid thermoplastic portion in the core, placing the core in line with a second cavity configured and sized to form the lip seal and molding the lip seal directly onto the rigid thermoplastic portion. The mold cavity is provided with movable internal and external stripper rings that allow the resilient portion to be removed from the cavity.