Cast arylic or specifically cell cast acrylic sheet is manufactured in batch quanities. Monomer (methyl methacrylate) is poured between two plates of tempered glass, commonly known as a cell, and polymerized in hot water baths or in an oven. Cell cast acrylic is preferred for small batch color runs and optical applications because it has a higher molecular weight, is more chemically resistant to aromatic solvents, exhibits more symmetry when it is free formed into domes, and also because it can be produced in thicker gauges. Cell cast acrylic is limited in its sheet size by the size of the glass used to cast it. Thickness tolerances can vary widely. Class C tolerances for .236/6mm thick cast acrylic are +.303 to .050 inches typically.

For more information, contact Mike at Ultra Acrylics, Inc.