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2K injection moulding with PA6 and TPU is an advanced technology that combines a hard, strong base (PA6) with a softer, durable outer layer (TPU). The combination provides excellent mechanical strength while maintaining comfort and ergonomics in the final part. When you need parts with mechanical strength and high comfort, 2K injection moulding of PA6 and TPU is the best choice.
This injection moulding technique allows for plastic production with multiple material layers in a single tool. The process consists of two steps:
The overmoulding creates a durable bond without need for adhesives, due to the chemical and thermal compatibility of the two materials.
2K injection molding with PA6 and TPU makes it possible to integrate multiple functions directly into the same part. By combining the materials with different mechanical properties, both strength and grip can be built in from the start, without increasing the number of parts or assembly steps.
With 2K PA6/TPU, fixtures and ergonomic surfaces can be designed as a single part. This reduces the need for separate grips, seals or protective elements and simplifies both design and assembly in the end product.
As both PA6 and TPU are injection moulded in the same tool, a precise and defined transition between hard and soft zones is achieved. This provides good control over tolerances, surface structure and functional limits, which can be difficult to achieve with retrofitted solutions or bonded materials.
2K PA6/TPU enables the adaptation of parts with varying hardness and surface structure. For applications where low weight is crucial, we recommend injection moulding with Ku-Fizz.
This injection molding technique is ideal when you need parts that are both strong and soft, such as ergonomic grips or flexible seals.
Our in-house tool manufacturing and plastic production provides short lead times and high reliability, regardless of the complexity of the part.
With in-depth knowledge and extensive experience, we can produce injection-moulded plastic parts with multiple material layers that maintain the same high standard in every part.
If you need parts with a hard base combined with a soft surface, we can help you choose the right technique and guide you from idea to product, whilst ensuring that all ergonomic and functional requirements are met. Contact us today to discuss the possibilities with 2K PA6/TPU.