Optix acrylic sheet is a lightweight, impact resistant, transparent material ideal for glass replacement. This sheet also features excellent weatherability and insulating properties. Sometimes referred to as plexiglass, common applications include garage door windows, storm windows, shelf lining, cabinet fronts, picture framing, window boxes Plexiglass starts out clearer than glass but will yellow in sunlight. The transmissivity of plexiglass (up to 92%) is higher than that of glass (80 – 90%) so it looks clear even in thick sheets. For this reason, is often preferred for museum display applications. However, plexiglass can gradually turn yellow when exposed to UV (sunlight) light. It illustrates that general purpose acrylic sheet and float glass only filter out a small amount of the UV-light present in solar radiation, whereas ACRYLITE® UV filtering sheet absorbs approximately 98% of the UV light. A further shift of the ACRYLITE® UV filtering sheet curve to the right would cause absorption of blue visible light and Unique UV blocking technology reduces harmful ultraviolet light wavelengths from penetrating the plastic while allowing beneficial wavelengths through. Does UV light damage acrylic? Acrylics are vulnerable to thermal, UV radiation and chemical attack which originates from their fundamental molecular structure. … Another way to hide from thermal imaging is to use a heavy blanket or wool blanket for a quick temporary method of IR concealment. Throw a blanket over yourself. A thick woolen blanket will help defeat thermal imaging. It works surprisingly well. Emergency Wool Blanket. F3w71BE.