The name Coroplast applies to a wide range of extruded corrugated plastic sheet products based on polypropylene copolymers. The natural polymer is chemically inert and is generally considered non-toxic and safe for use in contact with food. Pigmented or otherwise modified sheets are not considered to constitute any extra health hazard under normal handling and conversion.
All additives are melt-blended into the polymer and encapsulated.
Colors are available which will meet food contact approvals. While discretion would suggest that observation of precautions consistent with regulatory codes and standards should be followed when working with Coroplast, it is equally important to note that compared to other plastics on the market Coroplast is very low on a relative hazard scale. There are many flammability tests in use for different applications in the various parts of North America. A test valid in one area is not acceptable in another. We will try to offer information which will allow the relative hazard of Coroplast to be evaluated.