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Engine air guide parts use globally available rPP

Geiger Automotive is using Ravago’s recycled polypropylene (rPP) grade Mafill CR HT 5344 H for producing thin-walled parts for the air guide that directs cooling air to BMW X3 engines.

Mafill CR HT 5344 H is Ravago’s first globally available recycled PP to meet the same specifications from the starting materials available in both Europe and the US. A need for cost efficiencies and the automotive industry’s efforts to behave sustainably were both factors in favour of using a recycled material.

Linus Winkler, director supply chain management at Geiger, said: “Batches from both Europe and overseas are completely identical in quality. Changing on-the-fly from the European to the US material required no changes to machine parameters. The low distortion and dimensional stability of the molded parts were at the same high level.”

Ravago’s range of recycled PP grades also includes unfilled natural coloured, black, terracotta and green grades, compounds filled with talcum or CaCO3 and/or reinforced with glass fibres, together with elastomer-modified, UV- and heat-stabilised and custom products covering an MFI range of 1.5 to 40g/10min.

Typical automotive applications include wheel arch liners, air filter housings, front-end mountings, air ducts and containers.

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