SITCSection 5
U.S. imports of vinylidene chloride polymers, primary forms (SITC 57393) totaled $5.1M in April 2026, traded with 5 countries.
Importers of Vinylidene Chloride Polymers, Primary Forms paid $842K in duties in April 2026 — an effective duty rate of 17% on $5.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Vinylidene Chloride Polymers, Primary Forms imports of $5.1M in April 2026 ran 10% above the year-to-date monthly average of $4.6M.
Last updated: April 2026 dataPolyvinylidene chloride (PVDC) is distinguished by its exceptional oxygen and moisture barrier properties, making it a critical material for food-contact packaging films, pharmaceutical blister coatings, and specialty barrier laminates. Commercially known under trade names such as Saran, PVDC in primary forms is traded as pellets or latex dispersions, and the physical form affects both classification and end-use processing. Import volumes are relatively specialized compared to commodity PVC, reflecting the material's premium barrier performance.
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Both latex dispersions and solid primary forms of vinylidene chloride polymers can fall under this SITC heading, but at the HTS level the physical form — aqueous dispersion versus granules or powder — may direct the product to different 10-digit tariff lines. Confirming the physical form with your customs broker is important before filing entry.
PVDC's symmetrical molecular structure and high chlorine content give it significantly lower oxygen and water-vapor transmission rates than standard PVC, which is why it is preferred for vacuum-skin packaging, pharmaceutical blister films, and high-barrier multilayer structures where shelf-life extension is critical.
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Monthly import values over time