Large Size PC Dual Shot Housing Injection Molding | Transparent/Optical Enclosure & Lamp Cover

Product Description

OVERVIEW Custom large-size dual-shot / two-shot injection molded PC housing and optical cover component. The part is produced as a bigger-format 2K mold project using PC material, with SS136 mold steel to support high polishing, dimensional stability, and longer production life. Suitable for transparent/colored optical housings, lamp covers, tail-light style enclosures, and complex multi-zone plastic shells that require different optical or structural performance in one integrated part. MANUFACTURING SPECIFICATIONS • Process: Dual Shot / Two-Shot Injection Molding • Material: PC / Polycarbonate; can be configured as clear, tinted/red, or mixed optical grades • Tooling Steel: SS136 for wear resistance, polishability, and stable large-mold performance • Mold Type: Big-size dual-shot mold with rotated or indexed core/mold sequence as required • Surface Finish: High polish / optical-quality finish on visible and light-transmitting surfaces • Size Capability: Large-part molding with controlled warpage, sink, and stress • Features: Transparent/colored lens zones, mounting features, ribs, bosses, snaps, and sealing surfaces • Dimensional Control: Tight management of parting lines, wall thickness, and optical surface flatness KEY ADVANTAGES • One-Part Integration: Dual-shot molding combines multiple material zones or optical functions in a single component. • PC Clarity & Strength: Polycarbonate offers high light transmission, impact resistance, and heat performance. • Large Mold Capability: Big-size 2K tooling built to handle larger housing/cover geometries. • Premium Optical Surface: SS136 polish-grade steel helps achieve clear, glossy, and defect-resistant surfaces. • Reduced Assembly: Integrated structure lowers secondary joining, gluing, or assembly steps. • Stable Production: Robust tooling design supports repeatable quality for complex large parts. TYPICAL APPLICATIONS • Automotive or appliance lamp / tail-light covers • Transparent and tinted optical housings • Large consumer-electronics clear covers • Instrument panel and indicator enclosures • Multi-zone PC shells with structural and light-transmitting areas • Outdoor/industrial equipment optical covers and bezels PROCESS NOTE Large PC dual-shot parts require careful control of drying, melt temperature, mold temperature, and packing to avoid stress marks, flow lines, warp, and haze. Gate and parting-line placement are optimized to keep defects away from critical optical/visible surfaces. For tinted or red PC zones, color consistency and light-transmission uniformity are closely monitored. QUALITY ASSURANCE Visual inspection for clarity, color consistency, scratches, flash, short shots, sink marks, and weld/flow lines. Optical/light-transmission check where applicable. Dimensional and flatness verification for mounting and sealing interfaces. CMM / FAIR inspection available on request.

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