Elkamet extrusion process
Elkamet Portfolio Plastic Profiles Extrusion, Co- und Tri-Extrusion
A precise process for versatile applications

Extrusion, co-extrusion and tri-extrusion

The extrusion process is a highly specialised manufacturing process for producing precise plastic profiles, pipes and components with a constant cross-section. This technology enables the continuous production of products in virtually unlimited lengths and offers a unique combination of precision, material diversity and cost efficiency.

Elkamet has many years of experience in extrusion technology. We are continuously developing these leading technologies. Our R&D activities focus equally on the manufacturing process, the materials and the product properties.

Single extrusion

The classic extrusion process for homogeneous profiles made from a single material. Ideal for standard applications with high volumes and consistent requirements.

Co-extrusion

Simultaneous processing of two different materials in a single operation. Enables the combination of different properties such as hard/soft components or different colours in a single profile.

Tri-extrusion

Highly complex three-layer systems for the most demanding applications. Combines three different materials with specific functions in a single component.

Step by step to your extrusion profile

1. Melting and homogenisation

The material is melted and homogenised in the extruder at a controlled temperature. This ensures even material distribution without air pockets or inhomogeneities.

2. Shaping

The molten plastic mass is pressed through customised nozzles that define the final profile. Complex cross-sections and material combinations are implemented with precision.

3. Cooling and calibration

The extruded profile is stabilised in a controlled cooling process. Precise temperature control ensures minimal deformation and high dimensional accuracy.

4. Further processing

The finished profile is cut to the desired length and further processed if necessary. Continuous quality controls ensure compliance with the highest standards.

Advantages of Elkamet extrusion

Continuous process with high material utilisation and minimal waste
Precise dimensional accuracy through controlled process management and calibration
Complex cross-sections enable optimum use of installation space
Material diversity for application-specific requirements
Economical production for annual volumes ranging from hundreds to hundreds of thousands
Sustainable production through recycling options and optimised material use
Function integration through co- and tri-extrusion in a single operation
Some examples of our solutions

A selection of our high-quality plastic products

Support Rail

Engineered to keep every glass‑to‑body connection secure, stable and visually clean—ideal for modern automotive glazing systems.

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Lighting plastic profiles

Designed to shape light exactly as needed, with optical variations that elevate lighting performance across demanding applications.

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Window frames

Ensures tight gaps, reduced wind noise and smooth visual transitions—perfect for seamless integration of different glass elements.

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Busbars

A powerful blend of safety, efficiency and halogen‑free materials—ideal for compact, high‑performance power distribution.

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Gap cover

A smart way to close gaps, calm wind noise and achieve a clean finish between glass and bodywork—precision that’s built to last.

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Technical plastic profiles

Made to meet strict industry specifications—reliable performance, engineered materials and consistent quality from start to finish.

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Sunroof frame

Built for modern roof systems, combining extrusion and injection molding to deliver lightweight stability in every dimension.

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Plastic pipes

Versatile tubes for lighting and technical applications—round, oval or multi‑chambered, all crafted with precision.

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Tubs

Modular trough systems built from extruded profiles—ready for individual adaptation and modern joining technologies.

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Lenses

Optical profiles that bring precision to every beam—complex geometries designed for clear, controlled light output.

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Profiles for illuminated letters

Keeps signage vibrant and dimensionally stable—even outdoors—thanks to high‑quality CAB and premium craftsmanship.

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Which material is right for your project?

Materials in extrusion

Choosing the right plastic material is crucial for the performance and durability of the end product. In our extrusion, co-extrusion and tri-extrusion processes, we process a wide range of high-quality polymers that can be individually combined depending on the application.

We would be happy to advise you on the selection of the optimal material – individually tailored to your technical, economic and specific requirements. If the desired material is not included in our list, simply contact us – our selection is much more extensive!

  • Polycarbonate (PC)
  • Acrylonitrile butadiene styrene (ABS)
  • Polypropylene (PP)
  • Polyethylene (PE)
  • Polymethyl methacrylate (PMMA)
  • Thermoplastic elastomers (TPE)
CONTACT

Your idea – our expertise. Together we achieve the perfect result.

Get in touch with us—we will support you from the concept phase through to series production.