There are three options we use for outdoor interpretive trails,wayfinding signs,etc: 1)Full color printed graphics using  uv resistent inks or toners. The prints are then laminated and embedded in fiberglass which also filters out harmful uv. The manufacturers of these signs have done much in recent years to reduce yellowing. These signs are inexpensive enough that you can make several copies to swap out when a sign is vandalized or worn out. We have placed signs like this at 10,000' on a mountain top in full sun and they lasted for around 5-7 years on average. 2) Baked enamel signs. These can be full color with photos, graphics, etc and they are inert so they do not fade. They produce rich colors and have a texture to their surface which is quite nice. These signs are very expensive and can be readily vandalized with a rock or some other malicious object. 3) Etched and anodized aluminum signs. These work best with text and line art although we have used aerial photos,portraits and other images with moderate success. You have a choice of about 4 colors to work with. The signs are very long lasting, they fade very little (don't use the red), and are vandal resistent (you can use solvents to celan spray paint off without damaging the sign). Few manufacturers of anodized signs are sophisticated enough to do complex interpretive panels, but it can be done. This is a good choice for long-lasting, low maintenance outdoor signage that doesn't require full-color panels.

BlankWhat are the options for outdoor text panels? For our purpose they
would need to be long lasting, but not permanent -- lasting perhaps three to
five years. They would need to include text, graphics and photos. I've seen
many under a foggy layer of yellow plastic laminant, but they seldom look
good.  Ideas?
Thanks
Peter Morelli

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