We've added yet another material to our growing collection of products. Polycarbonate (PC) 3D Printer Filament is a very strong, impact resistant (used to make bullet proof glass...) and temperature resistant material that can be bent and formed while cold without cracking or deform. Available in Black, White and Transparent (Natural). The natural/transparent color option has very high optical clarity to visible light. Be sure to visit our temperature guide page for printing temps.