Polyurethane Concrete Bonding Cement
High-strength polyurethane cement for anchoring rebar and bonding new concrete to old surfaces in civil engineering. HTS 3909.50.2000 applies to this primary-form polyurethane cement meeting 95% monomer purity. Used in bulk for mixing on-site.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemically modified with >5% non-polymer additives
Prepared binders with significant modifiers classify as chemical preparations in 3824, not pure polymers per note (a)(3).
If for epoxy-modified polyurethane versions
Epoxy resin-based adhesives shift to Chapter 35 subheadings for specific adhesive types.
If sold as pre-mixed with refractory materials
Refractory cements incorporating polymers classify under Chapter 69 ceramics when mineral content predominates.
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Import Tips & Compliance
• Certify non-hazardous VOC levels for DOT compliance; test for plasticizer content per 3920.43 note if modified
• Pitfall: bulk imports misdeclared as 'prepared mortar' under 3824
• Use ISPM-15 pallets only
Related Products under HTS 3909.50.20.00
Polyurethane Construction Adhesive
A moisture-curing polyurethane cement designed for bonding wood, concrete, and metal in construction applications. Classified under HTS 3909.50.2000 as it is a polyurethane-based cement in primary form, where polyurethane monomers constitute 95% or more by weight per chapter notes. Primarily used for structural bonding rather than bulk polymer resin.
Polyurethane Woodworking Glue
One-component polyurethane cement for gap-filling wood joints, expanding on curing for strong bonds in furniture making. Falls under 3909.50.2000 as polyurethane cement in primary form with ≥95% polyurethane content. Distinguished from prepared glues by lack of extensive formulation.
Polyurethane Foam Adhesive Cement
Expanding polyurethane cement for insulating foam board installation and gap filling in building envelopes. Classified in 3909.50.2000 as polyurethane cement in primary form, with predominant polyurethane monomers. Supplied in bulk drums for professional use.
Industrial Polyurethane Laminating Cement
Two-part polyurethane cement for laminating films to substrates in flexible packaging production. HTS 3909.50.2000 covers this primary polyurethane resin cement with ≥95% qualifying monomers. Used in high-speed industrial coaters.
Polyurethane Shoe Sole Cement
Contact polyurethane cement for bonding rubber soles to leather uppers in footwear manufacturing. Falls under 3909.50.2000 as primary-form polyurethane cement per 95% monomer rule in chapter notes. Bulk-supplied for factory dipping.
Marine Polyurethane Deck Cement
Water-resistant polyurethane cement for teak deck caulking and bonding on boats and ships. Classified 3909.50.2000 as polyurethane cement in primary form meeting polymer purity standards. Professional marine-grade formulation.