It is called batch cell bulk polymerization wherein molds are formed by a couple of large planes that are made of steel or glass separated by flexible spacers.
How are acrylic sheets made.
Acrylic plastics are available in three forms.
Add a catalyst such as an organic peroxide to a monomer like methyl methacrylate.
Flat sheets elongated shapes rods and tubes and molding powder.
Molding powders are sometimes made by a process known as suspension polymerization in which the reaction takes place between tiny droplets of the monomer suspended in a solution of water and catalyst.
Acrylic is typically manufactured as lites or sheets of different dimensions.
Acrylic plastic is made in powder form with suspension polymerization and in sheets with bulk polymerization.
Produce a polymer from a monomer.
Sheets can be made in a variety of thicknesses depending on how much space is between the dye the sheets are then fed into cooling rows which makes the acrylic sheet solid.
The acrylic is sometimes interchangeably called plexiglass the brand name.
It is a clear plastic sheet that is flexible splinterless and sturdy.