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Source：www.pvc123.com

The air ducts made from DSM Stanyl Diablo OCD 2305 BM is lighter than the current metal or PPS solutions, the ducts can handle continuous temperature up to 230℃.

DSM is the inventor of Diablo technology. The Stanyl Diablo OCD 2305 BM they newly introduced is the first high temperature PA suitable for processing by extrusion blowmolding. Stanyl PA 4.6 material featuring excellent thermal stability, and was specially designed for producing hot charge air ducts for automobiles. The material features higher cost efficiency, thanks to its lower weight and scrap rate. Compared to PPS, the density of Stanyl OCD 2305 BM is lower, and can reduce the part weight by 7%. Better wall thickness distribution can even raise that value to over 10%. Meanwhile, it can also be used as metal alternative: not only reduces both weight and cost but also has better acoustic characteristic than metal.

Automobile and engine are now tending to small size. Creating these smaller engines requires new part designs. However, current air ducts, either in metal or injection molded in plastic, do not offer the design flexibility needed to fit complex underhood geometries. This requires the next generation of hot charge air ducts be created using blowmolding techniques, which is the most cost-effective way of producing such parts. As the first company to use Stanyl Diablo OCD 2305 BM to produce hot charge air ducts, ETM was searching for an alternative blowmolding material to produce hot charge air ducts for Volkswagen.