Extrusion Coating

Extrusion coating is a form of an extrusion process that is used to produce products with coatings. In this process, a molten layer of thermoplastic material is applied onto a substrate - such as paper, paperboard, aluminum foil, woven fabric, PET - using a horizontal shaped slot-die.

Commonly used resins include polyethylene (PE), polypropylene (PP) and ethylene vinyl acetate (EVA) copolymers chosen based on the desired end-product properties such as moisture resistance, oxygen barrier properties, sealability, adhesion, or printability.

The molten polymer is extruded directly onto the moving substrate, creating a permanent coating that enhances the substrate’s functionality for various industrial and packaging applications.

To optimize this process and tailor properties to specific applications, various additives such as tie resins and chain extenders can be incorporated.

Compounds used for extrusion coating

The Compound Company offers multiple Yparex and EcoForte products for the extrusion coating process, such as tie resins with adhesion to materials like PE, PA, PP, EVOH and aluminium, PE and PP peel compounds, and PET or PLA based chain extenders. For sustainable applications we also have tie resins fbased on bio-circular feedstock.

Applications of this process

Extrusion coating has a wide range of applications, for instance in packaging and building and construction.

Find the right product for your application

To explore our full range of extrusion coating solutions please visit our product selector. It will help you identify the most suitable materials for your specific process and end-use requirements.

 

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