This professional two-shot overmolding injection mold is specially developed for dual-material overmolded products. It integrates hard plastic substrate and soft elastic material in one molding cycle, realizing tight combination, anti-slip, shockproof and comfortable grip effects. Adopting precision two-station rotary structure and mature overmolding technology, the mold runs stably with high yield, widely used in daily necessities, electronic accessories, power tools, home appliances and automotive parts.
Core Features
✅ Dual Material Overmolding TechnologyPerfect bonding of hard plastic and soft rubber/TPU/TPE/Silicone. No delamination, no peeling, excellent adhesion for long-term use.
✅ Rotary Two-Shot Mold StructureRotary plate design for automatic two-cycle molding. High positioning accuracy, stable operation and high production efficiency.
✅ Precision Machining & High-Quality Mold SteelCore and cavity adopt high-grade mold steel with strict heat treatment. High hardness, wear resistance and long service life.
✅ Accurate Material Flow ControlOptimized runner and gating system, no material overflow, no flash, smooth product surface and stable material filling.
✅ Anti-Slip & Ergonomic MoldingCan be customized with texture, non-slip pattern and curved surface to meet grip, shock absorption, insulation and anti-slip functional demands.
✅ Low Defect Rate & Easy MaintenanceReasonable cooling and ejection system, uniform cooling to avoid warpage. Smooth ejection without scratching finished parts.
Technical Specifications
| Item | Details |
| Mold Type | 2K Two-Shot Overmolding Injection Mold |
| Main Molding Materials | Hard part: ABS, PP, PC, NylonSoft part: TPU, TPE, Silicone, Soft PVC |
| Cavity Number | Custom 1+1 / 1×2 / Multi-cavity |
| Mold Steel | P20 / 718H / 1.2344 (Optional) |
| Hardness | HRC 28–52 (Based on steel grade) |
| Structure | Rotary table two-shot mold |
| Runner System | Cold Runner / Hot Runner (Optional) |
| Surface Finish | Polished / Texture / Matte / Custom pattern |
| Mold Life | 500,000–1,000,000 shots |
| Application | Soft & hard composite overmolded parts |
![Bracket And Button over Mold]( "Bracket And Button over Mold")
Application Scope
Overmolded products made by this mold are widely applied in multiple industries:
Power tool handles, electric tool anti-slip grips
Household appliance switches, control knobs and grips
Electronic product shells, protective covers and hand straps
Automotive interior parts, rubber-coated buttons and anti-vibration components
Daily goods, kitchen utensils, beauty tools and wearable accessories
Why Choose Our Overmolding Mold
Strong Material Bonding: Professional overmolding design ensures hard and soft materials fit closely, never separate during use.
High Production Efficiency: Integrated two-shot molding saves working procedures and labor cost.
Customized Service: Support custom size, shape, texture, logo and material collocation according to drawings or samples.
Strict Quality Control: Full mold flow analysis, repeated mold trials and dimensional inspection before delivery.
Complete After-sales Support: Professional technical guidance for mold installation, debugging and daily maintenance.
FAQ
Q: What materials can be used for overmolding?A: Common combinations: ABS+TPE, PP+TPU, PC+Silicone. We can match suitable materials according to your usage scenarios.
Q: Can you customize multi-cavity overmold mold?A: Yes. We support 1 cavity, 2 cavities and multi-cavity design to meet different production volume demands.
Q: Will the soft rubber layer fall off easily?A: No. We optimize glue position and mold structure to enhance adhesion, and test bonding strength strictly during trial production.
Q: How long is the mold lead time?A: Standard lead time: 6–10 weeks, depending on cavity quantity and product complexity.
Q: Do you provide mold trial and sample service?A: Yes. We will finish mold trial and provide free samples for your confirmation before shipment.
