Loading...
HSChapter 40
U.S. imports of ethylene-propylene-diene rubber (epdm) — primary forms, plates, sheets & strip (HS 400270) totaled $10.8M in April 2026, traded with 27 countries.
Last updated: April 2026 dataEPDM rubber's outstanding resistance to weathering, ozone, and heat makes it the dominant elastomer for automotive weather-stripping, roofing membranes, and wire and cable insulation. South Korea leads US import supply, followed by Japan and Germany — three countries that collectively host the world's major EPDM polymerization capacity. All imports are classified under tariff line 4002700000. Diene type and content, Mooney viscosity, and oil-extension level are the specification variables most commonly cited in purchase contracts.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
No. Both oil-extended and non-extended EPDM in primary forms or as plates, sheets, and strip are classified under 4002700000, provided the product meets the HTS definition of synthetic rubber. The oil-extension level is a commercial specification, not a classification criterion, though it should be accurately described on the commercial invoice for valuation purposes.
The three main diene monomers used in EPDM production are ENB (ethylidene norbornene), DCPD (dicyclopentadiene), and VNB (vinyl norbornene). ENB-based grades cure faster and are preferred for automotive and wire applications; DCPD grades offer cost advantages for roofing. Buyers should specify diene type and content in purchase contracts because these parameters affect vulcanization behavior and end-product performance, even though all grades share the same HTS classification.
Supplier Network
Get discovered by U.S. importers searching for HS 400270 — Ethylene-Propylene-Diene Rubber (EPDM) — Primary Forms, Plates, Sheets & Strip. Be the first supplier listed.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| BELGIUM | -- | $16.1M | +$16.1M |
| MEXICO | $17K | $9.5M | +$9.5M |
| UNITED KINGDOM | $4K | $4.9M | +$4.9M |
| THAILAND | $1.5M | $3.1M | +$1.5M |
| JAPAN | $2.1M | $2.2M | +$100K |
Monthly import values over time