In the continuing quest to make cars lighter and tougher, automakers are turning to advanced structural adhesives in order to use more aluminum and exotic composites.
Since aluminum and some of those exotic composites cannot be welded together, industrial adhesives are being utilized to help hold together and stiffen load-bearing parts and components such as doors, bumpers and struts. For now, however, few automakers utilize these high-tech adhesives, though the technology is found on vehicles such as the Audi R8 and has been proven on the track to withstand vibrations and high heat.
Currently automotive adhesives account for less than 10 percent of the global adhesives market, but experts believe that number will grow at least a third over the next five to 10 years.
The average Audi vehicle uses around 325 feet of glue, but the German automaker expects that to increase to around 490 feet in the coming years. The new Cadillac CTS uses around 387 feet of structural adhesives and helps make the vehicle 40 percent stiffer than its predecessor.
[Source: Automotive News Europe]