The big brands all label the backing, Avery 3M Oracal Arlon
while Avery may be the easiest to install, they are seems to have the shortest life span.
http://www.signs101.com/forums/showthread.php?130748-Avery-Failures-Return&highlight=avery+wrap+failure
we prefer the Oracal 3751 PA & 290F...