... related compound. Most often, it is used to describe a clear, glass-like plastic known as poly(methyl) methacrylate (PMMA). ... Sheet Material PMMA Type Cast Color Various colors available, clear, transparent, translucent, opaque, milky white, black, red, yellow, green, ... than glass. ♥ Excellent light transmittance up to 93% with high gloss ♥ Excellent resistance to weather, anti-UV, and easy to clean ...