Vacuum form plastic sheets are thin, flexible plastic materials that are heated to a soft, pliable state and then molded into specific shapes using a vacuum forming process. The process begins by heating a plastic sheet until it becomes soft and malleable. Once the sheet reaches the desired temperature, it is placed over a mold or form. A vacuum is then applied to draw the sheet tightly around the mold, creating a precise shape. After the plastic cools, the result is a product that holds its form and is ready for use.