PP Hollow Board — One Material, Endless Applications
Why is PP hollow board rigid yet feather-light? Explore the twin-wall extrusion process, from melt to calibration, and see why this "plastic cardboard" is replacing solid sheet across packaging, construction, and signage.
SHEET EXTRUSION
Walk into a distribution center in Shenzhen, a construction site in Dubai, or a supermarket signage supplier in Birmingham — and you'll see the same thing: lightweight, rigid, faintly ribbed sheets in white, blue, or printed full-color. They're holding up as turnover boxes, room partitions, advertising boards, and concrete formwork. Same material. Different lives. That material is PP Hollow Board — and once you understand why it's shaped the way it is, you stop seeing it as "plastic cardboard" and start seeing it as one of the most quietly useful things to come off an extrusion line.