How long will an image last on KernowPrint Dry Toner when used outside?
This is a highly durable product suitable for long term outdoor use. The longevity of the image depends on the concentration of UV in the light it is exposed to. Direct sun is the worst case scenario, and from what we have seen the image will begin to fade within 6 months of direct exposure. We do not know if the fade curve is linear relative to UV concentration or how long the image will last in total darkness. The image can be protected from UV light through UV screening, over-varnishing, or glass containing a UV barrier. Toners also vary in printing hardware, with a variation between different makes and models possible.