Our UST screens are grey in pigment colour and has microscopic lenticular ridges, exaggerated in this diagram below so you can see them. This Screen includes layers of angular-reflective material as well as optical and absorptive microscopic beads, to improve the viewing angle, redirect and/or absorb ambient light from the sides, and adjusts the screen’s gain. The screen should be installed with the projector positioned below it, so that images are projected upward. In this position, ambient light from above its blocked, providing high image contrast. 
The screen surface can be cleaned with mild soap and water and is flame retardant and mildew resistant.