During yesterdays post which was part I of this subject we discussed SPI codes 1-4. Today we’ll discuss codes 5-7other.
5. Polypropylene (PP). Polypropylene has good chemical resistance, is strong, and has a high melting point making it good for hot-fill liquids. PP is found in flexible and rigid packaging to fibers and large molded parts for automotive and consumer products.
6. Polystyrene (PS). Polystyrene is a versatile plastic that can be rigid or foamed. General purpose polystyrene is clear, hard and brittle. It has a relatively low melting point. Typical applications include protective packaging, containers, lids, cups, bottles and trays.
7. Other. Use of this code indicates that the package in question is made with a resin other than the six listed above, or is made of more than one resin listed above, and used in a multi-layer combination.
Understanding your companies CSR initiatives around recycling and what the container codes mean and don’t mean on the containers your are buying is an important part of your sourcing initiatives.
We look forward to and appreciate your comments.