06/14/2010

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ExxonMobil supplies polyolefins for new Chevrolet Beat

Manufactured in GM India's Talegaon plant in Maharashtra, the Chevrolet Beat is the first vehicle from an emerging economy to use Exxtral polyolefins. The total amount of these polyolefins used in each vehicle is 28 kg, which represents about 25 % of the polymer weight in an average vehicle.

On the exterior of the vehicle, the polyolefin has been chosen for the front and rear bumper fascia, and the rear bumper skin. The polyolefin grades exhibit good processing attributes, high stiffness and impact strength, and low shrinkage.

They also deliver good dimensional tolerances to ensure a high-quality "fit and finish”. Due to a high melt flow rate, the polyolefins offer a broad operating window and produce good surface appearance, without ”flow marks” or "tiger stripes”, says the company. They also offer good paintability for bumper fascia applications.

Inside, the polyolefin has been chosen for the instrument panel and trim, door panels, and upper and lower trim applications. For interior applications, the mould-in colour of the polyolefin grades provide good aesthetics, and they are highly scratch resistant. Using a consolidated grade specification for each key application area can help automotive OEMs deliver a more harmonious interior appearance, while meeting the performance criteria, says the company.

The use of Exxtral polyolefin grades for the new Beat is the result of close cooperation between the two suppliers Plastic Omnium Varroc (POV) for the exterior components and Tata Automotive Components (TACO) for the interiors, and the compound supplier ExxonMobil.

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