(01)
Sydney: humidity and salt, especially east of the city
Sydney adds humidity to strong summer UV, and if you work the eastern or northern beaches you can add salt to that. Salt film builds on a vehicle far faster than most people expect and it works its way under any lifted edge. The practical response is not a different vinyl so much as a different habit: wash the panels the decals sit on, and take the laminate option so the print surface itself is sealed rather than exposed.
