I am completing an outdoor sign that is to be attached to a vehicle. They were adamant it be built out of wood. I am looking for an opinion what to use for the finish? I am leaning towards a simple oil based finish that can easily be repaired in the future. I thought of poly film finishes or an epoxy finish, but the downside is that in two years when the finish fails it will need to be removed. I doubt they will do that, but I am sure they can clean it and apply a new coat of oil finish in the future. Suggestions?
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