2K injection molding (two-component injection molding) is a process in which two different plastics are combined into one component in a single manufacturing process. This results in functional multi-component parts that combine properties such as hard and soft zones, sealing functions, or color accents in a single part.
Advantages of 2K Injection Molding
- Combination of different material properties
- Integration of functions without assembly
- Higher component quality and process reliability
- Reduced assembly and logistics costs
- Series production readiness and high repeat accuracy
2K injection molding is particularly suitable for demanding applications with high requirements in terms of function and design.
2K Injection Molding at 1zu1scale
1zu1scale accompanies 2K injection molding projects from feasibility testing to series production. We provide support in:
- Material combinations (e.g., hard-soft)
- Tool concepts for 2K injection molding
- Near-series implementation and process stability
- Scaling from small series to series production
Our focus is on economical and robust solutions.
Typical Applications for 2K Injection Molding
- Handles and controls
- Seals and functional surfaces
- Medical technology components
- Housings with integrated soft zones
- Visible parts with color or material separation
Technologies & Manufacturing Expertise
Depending on the requirements, different 2K processes are used:
- Overmolding process
- Transfer process
- Index plate technology
1zu1scale relies on proven processes and high-quality materials for consistent quality.
2K Injection Molding – close to Series Production right from the Start
A key advantage: we think in terms of series production for 2K injection molding right from the early stages of a project. This reduces development risks, lowers costs, and shortens time to market.
