Carton-sealing tape is made from thin strips of bi-oriented polypropylene(BOPP) which serves as the backing material. This backing material is then coated with various thicknesses of acrylic adhesive for different weight requirements. This unique OPP carton-sealing tape was first invented by and introduced in Taiwan by ACHEM, and gained the first prize in the Packing Material Invention contest sponsored by the Taiwan Government. As OPP tape possesses the unique quality of being both light weight and of having a high tensile strength, it has been widely adopted in automated cart-sealing machines throughout many industries.