Each Sensitile SystemsScintilla panel is constructed to have thousands of light-conducting channels. These optical pathways activate the panels to give them an interactive surface that responds to shadows, movements, light, and colors. The core composition is polymethyl methacrylate (PMMA) and cladding composition PMMA, tempered glass, polycarbonate, and 100 percent recycled PETG. More than 500 color compositions are available. Total panel thickness is 3/4 or 11/4 inches.; 313.872.6314.