Cast Acrylic Color Saquare Rod Cast Acrylic Color Saquare Rod Plexiglass Clear extruded and cast ACRYLIC rods sold by ePlastics are the finest in North America. Our molds are new and extrusion lines are kept to a minimum – even on the largest sizes. Our line of clear cast acrylic rods come in diameters that range from .250 to 8.00 inches in diameter. Tight tolerances throughout the manufacturing process assure you of getting the highest quality rods in the industry. Our standard material is a clear ultraviolet transmitting acrylic. Cast vs. Extruded Acrylic Tubing and Rod -Information you need to decide whether CAST or EXTRUDED acrylic rod is correct for your application.