According to Wilhelm Imaging Research, metal prints last three times longer than conventional photographic prints. That’s good news. With metal prints, you can not only display your photos, but they will last longer as well. This is the information Fine Art Printer Magazine recently reported on ChromaLuxe.
These results highlight the impressive stability of photo products produced with either the Epson Ultrachrome DS inks or the Sawgrass Sublijet HD Pro Photo XF inks. Metal prints, photo panels, and other similar products may also be produces with other inks, so be sure to check with suppliers on which inks they are using.
I checked with Forever, and they are using Epson UltraChrome DS inks, so you are safe with their products.
Note: The original article on ChromaLuxe is in German. An English translation is available at Fine Art Printer_Wilhelm Research_201701.