Corrugated plastic is known by many names, including corriboard, Polyflute, FlutePlast, Proplex, Correx, Twinplast, Corriflute, Corflute, and more. On top of that, Coroplast is the most common brand name for corrugated plastic sheets. Corrugated plastic is a type of plastic cardboard with a hollow lattice structure. This makes corrugated plastic sheets one of the lightest, most versatile, and shock-absorbing plastic materials on the market. Polypropylene is an extremely strong thermoplastic polymer with a neutral pH, allowing it to withstand a wide range of external temperatures, weather, and usage conditions for extended periods of time with minimal wear.