Polypropylene sheet or the brand name which it’s more commonly known by, Corflute, comes in sheets resembling corrugated cardboard. Plastic ‘ribs’ sandwiched between plastic walls produce this lightweight but strong plastic material which is also known by the names ‘fluted poly’ and extruded twin wall plastic’. Polypropylene is a popular choice for signage and advertising banners due its printability and being weather resistant (UV resistant), lightweight, strong, and durable. Order here for wholesale prices. We sell direct from our Gold Coast warehouse for commercial use and domestic purposes.