Loading...
SITCSection 5
U.S. imports of polyurethanes in primary forms (SITC 57545) totaled $46.6M in April 2026, traded with 45 countries.
Importers of Polyurethanes in Primary Forms paid $3.2M in duties in April 2026 — an effective duty rate of 14% on $22.9M in dutiable value, based on actual customs collections rather than the published tariff schedule. Polyurethanes in Primary Forms imports of $46.6M in April 2026 ran 11% above the year-to-date monthly average of $42.1M.
Last updated: April 2026 dataPolyurethanes in primary forms — including MDI- and TDI-based prepolymers, polyols, and liquid systems — serve as the upstream building blocks for flexible foam, rigid insulation, coatings, adhesives, sealants, and elastomers across construction, automotive, and furniture sectors. The heading covers both one-component and two-component systems before they are reacted into final foam or elastomer, so the physical state at import (liquid, paste, granule) and the isocyanate content are critical parameters for both classification and hazardous-materials compliance. Section 301 tariff exposure varies by country of origin and specific product form, making origin documentation essential.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes. Prepolymers retaining free isocyanate groups are classified as hazardous materials under DOT regulations and require proper UN packaging, SDS documentation, and hazmat labeling. Importers should confirm the free-NCO percentage with the supplier and ensure freight forwarders are briefed on the hazmat classification before shipment.
A pure polyol without isocyanate is classified separately from a polyurethane prepolymer or reaction system. If the imported product is a pre-blended two-component system, it may be classified as a polyurethane in primary forms rather than as a separate polyol or isocyanate. The key criterion is whether a urethane linkage has already been formed in the product as imported.
Supplier Network
Get discovered by U.S. importers searching for HS 57545 — Polyurethanes in Primary Forms. Be the first supplier listed.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $21.8M | $15.5M | -$6.3M |
| MEXICO | $1.5M | $21.6M | +$20.0M |
| GERMANY | $9.2M | $1.5M | -$7.7M |
| CHINA | $677K | $5.0M | +$4.4M |
| UNITED KINGDOM | $1.4M | $3.2M | +$1.8M |
Monthly import values over time