SignGold or Real Gold (I prefer Real Gold but both are good quality) are real 22k gold sputtered onto a cast vinyl film with a Tedlar top coat. They need to be applied as per the manufacturers instructions (edge sealed or overlaid with a cast vinyl outline to seal the edges). 10 year mfg. warranty (I think) and should last a few years beyond that. The 22k gold will not fade (22k gold may oxidize a bit because it is not 100% gold but would likely not be that noticeable because it is sealed). The cast vinyl film used as an outline or shadow will fail first (why I always seal the edges with a quill or the sealant pen the manufacturers sell for that purpose). Looks great and is usually an easy upsell for image conscious clients (expensive, though).