The 3M Scotchlite 680-72 Red is a flexible retro-reflective sheeting (180 µm) with a permanent, pressure activated adhesive. Suitable for flat and moderately curved or corrugated surfaces with or without rivets, it can be screen-printed using 3M Scotchlite Screen Printing Ink Series 2900. With a similar daytime and night-time appearance that retains most of its reflectivity when wet, it is  removable with heat and is available in five colours.