ExxonMobil Chemical Exxtral™ performance polypropylene has been specified for the front and rear bumper fasciae of the new globally available VW Golf VI. The company developed Exxtral BMU130 polyolefin to comply with the stringent performance targets set by Volkswagen (VW). As per the company release, VW is the first German original equipment manufacturer (OEM) to select strong, light-weight Exxtral polyolefins for its fasciae. Using our technology and application expertise to develop a specific grade for these bumper fasciae ensured we could meet VW's functional and cost needs, which was crucial in earning their business," said Marty E. Levine, global automotive marketing manager, ExxonMobil Chemical specialty compounds business.
The company says Exxtral BMU130 performance polyolefin is designed for tight tolerances and excellent dimensional stability. Its low coefficient of linear thermal expansion (CLTE) allows parts to be designed with narrow gap dimensions for an aesthetic and stylish appearance. In addition, the grade complies with part shrinkage requirements specified by VW and provides good surface appearance due to its fluidity. The product is said to have a broad operating window to eliminate processing problems, such as "tiger stripes." Also, as a ready-to-inject, fully-stabilized, colored compound, Exxtral BMU130 polyolefin is claimed to enhance productivity and deliver cost savings as it requires no mixing or blending at the molding presses and provides for good paintability and has high UV resistance.