These characteristics arise from the durable polypropylene composition, along with the thickness and construction of the RPC walls, sides and base plate. In combination with the design, the food safe, UV-radiation resistant material provides the right mix of flexibility and stability – neither too stiff nor too pliable – to avoid cracking as well as sagging. This quality is particularly crucial.
Whether full or empty, the RPCs’ dimensions must be extremely precise to ensure secure stacking and efficient handling. This requirement is also critical for automated processes. With nearly 300 million IFCO RPCs in the global pooling system, even a one-millimeter difference in the footprint has an immense effect in the ability of such systems to recognize packaging systems, since many use camera or laser measurements to identify food-carrying crates.