1/2″ Premium PVC Face Board
This foam board is still lightweight and portable enough to set up. To produce the final material, polyvinyl chloride (PVC) starts out as a liquid. Air is injected into the liquid mix to make it light and fluffy; this fluffy mixture is squeezed between rollers to achieve the desired thickness – and turn the airy mass into a solid material. The result is thick and rigid, but also relatively lightweight.