Salmoneye??
There is nothing immoral about using our printers for outdoor usage. Do you have an encad? Have you used one? How many prints have you looked at? From what I read you do not have an encad..
Also what do you consider temporary? To me temp means just a few weeks such as yard
signs or grand opening banners.
I use my encad for short term outdoor usage all the time. Short term meaning months instead of weeks. I had one panel on the shady side of a trailer last well into 18 months..
So with that thought I would suggest that you do not condem the usage of an encad for reasonable outdoor usage. I print many outdoor panels all of which do the job just fine. I printed for several small covered trailers used in parades and the print was fine when changed year later. In fact the clients mentioned they still looked good. Some good lam juice and a little care and the encad sheets will last plenty long when a proper evaluation is used for the application.
There is an encad printed banner being used as I type. I printed it 3 yrs ago and it looks great. I expect them to keep using this banner for years. Should I post a pic of it?