Rigid Polyurethane Resin
High-density polyurethane resin in primary pellet form for rigid insulation panels. HTS 3909.50.5000 covers this as 'Other' polyurethanes in primary forms with 95%+ polymer content. Not chemically modified or copolymer-dominant.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If phenolic resin content predominates
Per note (a)(4), phenolic monomers over polyurethane by weight go to phenolic subheading.
If acrylic copolymer blend
Acrylic units predominant classify under acrylic polymers, not polyurethanes.
If pre-expanded into rigid foam blocks
Cellular or rigid foam forms shift from primary polymers to other plastic articles.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Submit FTIR or NMR analysis proving polyurethane structure and primary form status
• For EU imports, ensure no restricted isocyanates per REACH Annex XVII
Related Products under HTS 3909.50.50.00
Thermoplastic Polyurethane Pellets
TPU pellets in primary form for injection molding of shoe soles. HTS 3909.50.5000 as 'Other' polyurethanes, confirmed by 95%+ polyurethane monomer dominance. High abrasion resistance grade.
Waterproof Polyurethane Coating Resin
Aliphatic polyurethane resin for UV-resistant waterproof coatings. HTS 3909.50.5000 'Other' polyurethanes in primary forms per 95% rule. Used on outdoor fabrics.
Polyurethane Reactive Hotmelt Resin
Moisture-curing polyurethane hotmelt adhesive resin in primary form. Classifies under 3909.50.5000 for 'Other' polyurethanes with 95%+ monomer units. For wood bonding.
Polyurethane Sealant Base Resin
One-component polyurethane resin for construction sealants. Primary form under 3909.50.5000 as qualifying 'Other' polyurethane polymer.
Flame Retardant Polyurethane Resin
Halogen-free flame retardant polyurethane for electronics potting. HTS 3909.50.5000 primary 'Other' polyurethanes.
UV Curable Polyurethane Acrylate
Hybrid polyurethane acrylate oligomer for UV inks. Primary form 3909.50.5000 if PU predominates.