Popular Mechanics (South Africa)
HOW IT’S DONE
Sound engineers produce the lacquer or copper discs that are electroplated to make nickel copies that will act as top and bottom moulds. Those discs – or stampers – go into our presses. We sandwich extruded polyvinyl chloride, copolymer preforms in-between them, and heat and compress them. Finally, we cure the finished product and trim the excess material.