Corrugated plastic or corriboard - also known by the trade names Cartonplast, Polyflute, Coroplast, FlutePlast, IntePro, Proplex, Correx, Twinplast, Corriflute and Corflute - refers to a wide range of extruded twin-wall plastic sheet products made from high impact polypropylene resin with a similar composition to corrugated fibreboard. It is a lightweight, tough material that can be easily cut with a utility knife. Manufacturers typically offer a wide range of colours and thicknesses (commonly 3, 4, 5mm).

Chemically, the sheet is inert, with a neutral pH. At normal temperatures it is impervious to most oils, solvents and water, allowing it to be used in adverse weather conditions or as a component in products exposed to harsh chemicals. Standard sheets can be modified with additives that are melt-blended into the sheet to meet the specific needs of the end user. Special products requiring additives include: UV protection, antistatic, flame retardant, custom colours, corrosion inhibitors, static dissipative and others.

Applications：

Corrugated plastic is commonly used to make commercial, political or other types of signs and to construct plastic containers and reusable packaging. It is widely used in the sign industry to make signs for property sales, construction sites and promotions.

Corrugated plastic is also used extensively in the packaging industry. Its ability to withstand chemicals and moisture makes it an ideal material for shipping containers and crates. Additionally, its lightweight nature reduces shipping costs and makes it easier for workers to move and handle the packaging.

The use of corrugated plastic in the agricultural industry is also growing. It is commonly used as a material for greenhouse roofs, as it is lightweight and provides a good level of insulation. Corrugated plastic is also used as a protective cover for crops, as it can protect them from weather conditions and pests.