← External Forces: Industry Specific (all topics)
BOPET/BOPP overcapacity cycle
What it is
Biaxially oriented polyester and polypropylene films are commodity substrates made on large, capital-intensive lines. Capacity is added in lumps and takes years to absorb, so the industry swings between shortage margins and prolonged oversupply
Specialty barrier and metallised grades sit above the commodity base
Impact on industries
- Classic capacity cycle - lines commissioned during a margin peak deliver into a trough, and the industry has repeated this several times
- Commodity-grade imports cap pricing during oversupply, since a plain film has no differentiation to defend
- Specialty barrier, metallised and high-performance grades earn materially better margins and are less exposed to the commodity swing
- Backward integration into resin secures the largest input and widens the spread, which is the main structural defence
- E-commerce parcels and EPR-driven mono-material redesign both create demand for engineered film rather than commodity substrate