Ford puts Escape SUV on a diet with innovative door material
When automakers shave extra pounds off their car designs, the difference can add significant mileage to their fuel economy figures - an attractive proposition in the car leasing marketplace.
Most designers achieve the weight savings by swapping lightweight aluminum for heavy steel, or wrapping car bodies with plastic skins instead of sheet metal, but Ford is taking a different approach with its Escape SUV.
Engineers at the company will cut weight in the car by replacing the "bolster" material inside each door with kenaf plant matter instead of oil-based materials. Grown in the tropics, kenaf is a cousin of cotton that looks like bamboo and is also used in cosmetics and paper.
Mixed half-and-half with polypropylene at a factory in Indiana, the recipe will slash door weight by 25 percent. The decision comes with an environmental bonus, as well, helping the automaker to offset 300,000 pounds of oil-based resin per year in North America.
"Kenaf and the other renewable materials in the Escape have made the vehicle more environmentally friendly and fuel efficient," said Laura Sinclair, an Escape materials engineer.
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