Co-extrusion

Co-extrusion is an extrusion process in which two or more thermoplastic materials are combined within a single die to form a multilayer structure. First, each material is melted in a separate extruder under controlled processing conditions. Next, the molten polymers are brought together in a shared die, where they are precisely combined into a unified flow. As the materials merge, they bond into a single structure before entering the cooling phase, where the final product is solidified.

The key advantage of co-extrusion is that each material retains its individual properties within the final structure. As a result, it becomes possible to combine different functional characteristics, such as strength, barrier performance, adhesion or processability, within a single product. Depending on the application, co-extruded structures can therefore be engineered to meet highly specific performance requirements. To achieve optimal results, additives and specialty compounds such as chain extenders are often incorporated into the process.

Our solutions for co-extrusion

At Compovate, we support the processes with a range of high-performance thermoplastic compounds. Our portfolio includes chain extenders based on PET and PLA, helping to improve melt strength, process stability and overall material performance.

Co-extrusion is used across a wide range of industries where multilayer performance is required. Typical applications include packaging solutions, mechanical recycling, building and construction materials, as well as pipes, wire and cable systems.

Optimize your process together

With extensive knowledge of thermoplastic compounds and additives, Compovate helps manufacturers optimize processing and material performance across a wide range of applications. Our solutions support stable production, consistent quality and reliable end-product performance. Together, we identify the right compound for your specific requirements and develop a solution tailored to your application. Contact our team to discuss your challenges and discover how Compovate can support your co- extrusion process.

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Whether you have a question or need expert advice for your project, our team is here to help.

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Featured Products

Compovate C E1N 2140

PLA based chain extender masterbatch

Functionalized masterbatch in granular form, chain extender for PLA and polymer blends containing PLA to increase molecular weight.

Compovate C C1N 2139

PET based chain extender masterbatch

Functionalized masterbatch in granular form, chain extender for PET and polymer blends containing PET to increase molecular weight.