Coextrusion is a core technology for the design of advanced plastic profiles. The ability to combine different materials within a single production process allows to create solutions that are more efficient, reliable and high-performing. For companies that incorporate plastic profiles into their products, this technology opens up new design possibilities.

What is plastic coextrusion

Coextrusion is a process in which multiple materials are combined and extruded simultaneously to form a single profile. It is possible to join several plastic polymers or to combine plastic with metals and other materials. The result is a composite profile where each component serves a specific function. This enables the design of products in which the different materials complement each other, enhancing overall performance.
With coextrusion, it is possible to create technical components that combine diverse properties such as structural rigidity, flexibility, weather resistance and surface protection.
Coextrusion represents a significant advancement over traditional extrusion methods, allowing for the development of solutions that are technically and aesthetically more sophisticated. This technology enables the production of highly specialized profiles designed to meet the requirements of industrial applications that can vary widely.

Technical advantages of coextrusion

One of the main advantages of coextrusion is the ability to optimize profile performance by combining materials with different characteristics. This allows for the production of components that provide both structural rigidity and flexibility, or elements where the surface exhibits different properties from the inner core.
The technology also enables more efficient use of materials. High-performance or costly polymers can be used only where they are needed, while more economical materials can form the internal structural core.
Another advantage is functional integration. Coextrusion often makes it possible to produce profiles that already incorporate functions that would otherwise require additional assembly. This reduces extra processing, simplifies assembly, and enhances the overall reliability of the product.
In terms of durability, coextrusion allows the application of protective coatings that increase resistance to weather, ultraviolet radiation, abrasion and aggressive chemicals. This helps to extend the service life of components even under demanding operating conditions.

VBN: your partner for coextrusion

VBN applies coextrusion technology to develop custom plastic profiles tailored to the specific requirements of each application. Drawing on nearly 70 years of expertise and state-of-the-art extrusion facilities, we can combine different materials within a single profile to take full advantage of their complementary properties. During the extrusion process, double-sided tapes and protective films can also be applied.
Coextrusion technology has been continuously refined and now offers a wide range of design options. It enables the production of profiles with a rigid core and a soft outer layer, or conversely, soft on the inside and rigid on the outside. Every project is custom-designed and managed throughout all stages, from concept to production, ensuring precision, quality and timely delivery.

Learn more about the possibilities of plastic profile coextrusion.