Foam Moulding

Foam moulding is a manufacturing process used to produce lightweight plastic components with a cellular structure. By incorporating a blowing agent into the polymer, the material expands during processing, resulting in parts that combine low weight with excellent mechanical and thermal performance.

During foam moulding, a polymer containing a physical or chemical blowing agent is introduced into a mould cavity. As the material is heated, the blowing agent generates gas, causing the polymer to expand and completely fill the mould. The expanding foam conforms to the mould geometry and forms a uniform cellular structure.

Once the material has fully expanded and solidified or cured, the mould is opened and the finished component is removed. Careful control of the processing conditions ensures consistent density, dimensional accuracy and product quality.

To optimise processing and material performance, functional additives can be incorporated into the formulation. Depending on the application, additives such as chain extenders, stabilisers and processing aids can improve melt strength, processing stability and the final properties of the moulded foam.

Our solutions for foam moulding

Compovate offers a range of additives for foam moulding applications, including chain extenders for PLA and PET. Our products are designed to improve melt strength, enhance processing stability and support the production of high-quality foamed components.

Foam moulding is widely used for packaging, automotive components, insulation materials and other applications where lightweight structures, thermal insulation and impact resistance are required.

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 foam moulding 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.