We are redoing some garage doors for a fire department. The garage doors are aluminum and have a wood grain texture too them. The doors were lettered just under 2 years ago and are peeling badly. Did the last guy screw up and not clean them well enough or do I need to use a special vinyl for this? I was looking at something like the gerber permagrip as we will be printing them on the edge and frog juicing them after that. My other thought was somrthing like the MacTac street wrap vinyl. Any help from the experts would be great!