Two-shot molding

Your manufacturer for high-quality 2K plastic components

When components need to perform multiple functions, conventional injection molding quickly reaches its limits. This is where two-shot molding comes in: two materials, one process, one precise result.

At Werner Schmid, we produce 2K components that don’t just meet functional requirements — they combine them: sealing, guiding, damping, protecting — directly within the mold, without additional assembly steps.

As an experienced manufacturer, we combine advanced injection molding technology, in-house toolmaking, and automated series production to ensure stable and reliable processes — certified to IATF 16949 and built for consistent quality.

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Manufacturing with a system

Illustration eines 2K-Spritzgussteils aus Kunststoff für Anwendungen in der Elektrotechnik.

High-quality 2K components can only be produced reliably when every process step is perfectly aligned. That’s why we bring development, toolmaking, and injection molding together under one roof. Using advanced two-shot injection molding machines, we manufacture multi-component plastic parts in medium and high volumes — precisely tailored to material combinations, component geometry, and real-world application requirements.

  • Design & Toolmaking: Already in the design phase, we optimize your component specifically for the 2K process. We develop and manufacture the required injection molds in-house — ensuring maximum precision and long-lasting production tools.
  • 2K Injection Molding Process: Two polymers are precisely bonded in a defined process step. The result: strong material adhesion, consistent quality, and fully reproducible components.
  • Quality Assurance & Assembly: On request, we deliver fully assembled components including surface finishing and 100% inspection- ready for immediate integration into your production line.

Multi-component injection molding with series-level quality- from the start engineered for stability

Illustration einer Kunststoffspritzgießmaschine mit Robotik, Förderband und Qualitätsmessung.

We don’t produce 2K injection molded parts as a trial — but as a robust, scalable series production process. Our focus is on reproducible precision, consistent material bonding, and long-term process stability.

Our core capabilities at a glance:

  • Hard-soft combinations for functional plastic components
  • Multi-component injection molded parts based on drawings or CAD data
  • Precision series production for safety-critical applications
  • Consistent process monitoring and quality assurance

Industries and applications

Illustration der Branchen, in denen Metall- und Kunststoffteile eingesetzt werden.

Our 2K plastic components are used in industries that demand the highest levels of precision, durability, and functionality, including:

  • Automotive industry — interior and engine compartment components, functional modules, soft-touch elements
  • Electronics & electrical engineering — housings, connectors, and multi-material components
  • housings, connectors, and multi-material components
  • Mechanical and plant engineering — technical plastic parts with high durability and functional performance
  • Medical technology & measurement/control systems — precision plastic components with integrated functions
  • Consumer goods & household appliances — ergonomic soft-touch components and durable plastic housings

Manufacturing solutions for functional integration and assembly reduction

Many assemblies today consist of multiple individual parts that need to be assembled, bonded, or sealed. By using hybrid and two-shot injection molding technologies, these functions can be directly integrated into a single component.
We systematically analyze your components and identify opportunities for functional integration and assembly reduction.

This means:

  • Functional integration within the component: sealing elements, damping zones, or soft-touch areas are created directly during the molding process
  • Reduced assembly effort: multiple functions are combined into a single part — eliminating additional joining steps
  • Durable material bonds: material combinations are permanently and reliably bonded — without adhesives or secondary operations
  • Consistent quality: series-capable processes ensure reproducible part properties and maximum process reliability

As a result, high-performance hybrid and 2K components are created that simplify assembly, reduce failure risks, and reliably meet the quality requirements of demanding series applications.

Your project with Werner Schmid: 2K injection molded components

Whether functional 2K injection molded parts, plastic components with sealing or soft-touch areas, or complex multi-component parts — we support you from development and toolmaking through to stable series production.

As an experienced 2K injection molding manufacturer, we deliver precise and process-reliable solutions for automotive, mechanical engineering, and electronics applications.

➡️ Send us your specifications – we will review your project thoroughly and get back to you promptly.

Gallery

Custom two-shot molding protective component with integrated TPE seal manufactured in Germany
2K Protective Component with Integrated Seal
2K functional holder with integrated protective element for furniture applications
2K Functional Holder
Custom 2K plastic housing with integrated sealing function for industrial use
2K Housing with Sealing Function

Frequently Asked Questions

What is 2K injection molding?

2K injection molding, also known as two-shot molding or multi-component injection molding, combines two different materials into a single component during one manufacturing process. Typically, a rigid thermoplastic is combined with a flexible elastomer such as TPE, allowing sealing, damping and protective functions to be integrated directly into the part.

What are the advantages of 2K injection molding?

2K injection molding enables the production of complex plastic components with multiple functions in a single manufacturing step. Additional assembly, bonding or joining processes can often be eliminated, reducing costs, improving process reliability and enhancing overall part quality.

Which materials can be combined in 2K injection molding?

A wide range of thermoplastics and elastomers can be combined in multi-component injection molding. Common material combinations include PA, PBT, PC or ABS with TPE. Material selection depends on the required mechanical properties, temperature resistance, chemical resistance and bonding performance.

Can seals be molded directly onto the component?

Yes. Integrated seals are among the most common applications of 2K injection molding. An elastomer is molded directly onto the plastic substrate, reducing assembly effort and ensuring a reliable long-term sealing function.

Which applications are suitable for 2K injection molding?

2K injection molding is ideal for technical plastic components with integrated functional features. Typical applications include automotive components, electrical engineering, building technology, ventilation systems, industrial equipment and mechanical engineering.

When is 2K injection molding more cost-effective than assembly?

2K injection molding is particularly cost-effective when multiple components or assembly steps can be replaced by a single integrated part. By combining materials directly during the molding process, manufacturers can reduce assembly costs, simplify production and improve overall manufacturing efficiency.