Standox is a DuPont brand. If you have a DuPont paint dealer or body shop close by they can log in to the Standox/Dupont site and get the mix codes. You can go to the site to enter your zip code to see where the dealers are.

http://pc.dupont.com/dpc/en/US/html/visitor/b/stx/s/locator/locator.html