Corrugated plastic and Applications

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.

In the last decade, it has found increasing use among enthusiasts of guinea pigs, rabbits, domesticated hedgehogs and other small pets as components of DIY cages. It is also used by members of the radio controlled aircraft community to build virtually indestructible SPAD model aircraft. Use of corrugated plastic in welded hollow plastic plate air-to-air heat exchangers.

At least one manufacturer of air-to-air heat exchangers (used in heat recovery ventilation) uses a fused stack of sheets of this material alternating with spacers made of the same material as the heat-exchange medium. One air stream passes through the corrugated channels in the interior of the sheets, while the other passes between the exterior layers of the stacked sheets.