Compounding

Compounding is an extrusion process in which thermoplastics are melt-blended with additives to produce materials with tailored properties. By combining polymers with functional additives, compounds can be developed to achieve specific mechanical, thermal or processing characteristics for a wide range of applications.

Compounding is commonly carried out using co-kneaders, twin-screw extruders (co-rotating or counter-rotating) or internal mixers. Polymers and additives are continuously fed into the process through a hopper. Inside the extruder, the materials are conveyed through a temperature-controlled barrel where they are melted, mixed and homogenised by the rotating screw(s).

The process parameters, including temperature profile, screw configuration and residence time, are adjusted to match the polymer system and formulation. After melt mixing, the homogeneous compound is extruded through a die and cooled by water or air before being pelletised for further processing.

Our solutions for compounding

A wide variety of additives can be incorporated during compounding to optimise material performance. Depending on the application, additives can improve mechanical properties, enhance compatibility between polymers and increase processability.

Compovate supplies a range of additives and compounds that support efficient and reliable compounding processes. Our portfolio includes natural fibres, impact modifiers and chain extenders for PET and PLA, as well as bio-based additives for sustainable material solutions.

Our products are designed to improve material performance, optimise processing and contribute to high-quality compounds for demanding applications. Compounded materials are used across a broad range of industries, including mechanical recycling, building and construction, electrical and electronics (E&E), automotive and other technical plastic applications.

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 compounding process.

How can we help you?

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

Ask a question

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.