PMMA (Polymethylmethacrylate/acrylic) Overview The best known acrylic plastic. Strengths Excellent clarity and UV resistance. Good hardness, stiffness and abrasion resistance, reasonably high tensile strength and modulus. Low smoke emission. Good tracking and arc resistance. Thermoformable, can be colored to a high saturation, can be polished, excellent surface finish and gloss. Resistant to alkalis. Low mold … Continue reading PMMA (Polymethylmethacrylate/acrylic)