A matte, translucent, grey, cast film (80 µm), appearing grey by day, and white by night when illuminated from behind. By applying a 3M™ Scotchcal™ Translucent Film on the second surface, a specific night time colour can be achieved when backlit. Up to 10 years durability.
- Film which produces the appearance of dark graphics during the day and white graphics at night on internally illuminated signs.
- In incident light, almost black
- In transmitted light, the colour of the light source (typically white)
- Can be used with coloured translucent films which influence the colour of the transmitted light