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Flexible Polyurethane Prepolymer

Low-viscosity polyurethane prepolymer in primary form for flexible foam production. The polyurethane monomers predominate by weight, qualifying for heading 39.09 as a polyurethane in primary form.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
πŸ‡¨πŸ‡³ChinaFreeβ€”Free
πŸ‡²πŸ‡½MexicoFreeβ€”Free
πŸ‡ΊπŸ‡ΈUnited StatesFreeβ€”Free
πŸ‡©πŸ‡ͺGermanyFreeβ€”Free
πŸ‡―πŸ‡΅JapanFreeβ€”Free

PGA flags

No agency flag on this HTS number in the CBSA Single Window matching criteria.

CBSA Single Window matching criteria, unknown

More Specific Codes

This product may fall under a more specific subheading:

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3907.99.00Same rate: Free

If the product is primarily a polyol intermediate

Polyethers and polyesters are classified in heading 39.07.

3921.13.00Same rate: Free

If imported as cured flexible foam

Cured polyurethane foam is classified under plates, sheets, film, foil and strip.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item β€” and can price the duty on it in the same conversation.

Import Tips & Compliance

β€’ Ensure the product is in primary form (liquid)

β€’ If the prepolymer is a chemically modified polyurethane, it may still be classified under the unmodified polymer heading

β€’ Keep technical data sheets showing polymer composition

Related Products under Tariff item 3909.50.00

Bio-Based Elastomeric Polyurethane Resin

A bio-based elastomeric polyurethane resin derived from bio-polyols, supplied in primary form (e.g., pellets or liquid) for use in flexible packaging films. It is chemically unmodified with a polyurethane content exceeding 95% by weight, meeting the classification criteria for polyurethanes under tariff item 3909.50.00.

Biobased Polyurethane Resin

Renewable content polyurethane resin derived from bio-polyols, supplied in primary form. The polyurethane monomers predominate by weight, and the product qualifies for heading 39.09 as a polyurethane in primary form.

Conductive Elastomeric Polyurethane Resin

A conductive elastomeric polyurethane resin in pellet form, filled with less than 5% carbon black for electrostatic discharge (ESD) flooring and shielding applications. The polyurethane polymer content remains above 95% by weight, and the product is in primary form, qualifying under tariff item 3909.50.00.

Elastomeric Polyurethane for Footwear Sole Resin

An elastomeric polyurethane resin in primary form, specifically formulated for reaction injection molding (RIM) of flexible shoe soles. With a polyurethane monomer content of 97% by weight, it meets the classification criteria for polyurethanes under tariff item 3909.50.00.

Elastomeric Polyurethane Hot-Melt Adhesive Resin

A thermoplastic elastomeric polyurethane resin in primary form, formulated for hot-melt adhesives used in packaging and footwear bonding. The elastomeric nature provides flexible bonds, and the polyurethane monomer content exceeds 95% by weight, qualifying under tariff item 3909.50.00.

Elastomeric Polyurethane Reaction Injection Molding Resin

A two-part elastomeric polyurethane system (polyol and isocyanate) imported separately, each in primary form for reaction injection molding (RIM) of automotive fascia. Each component meets the polyurethane predominance criteria, and the system qualifies under tariff item 3909.50.00.