Industrial Grade Polymeric MDI (MDI-P)
Industrial Grade Polymeric MDI (MDI-P) is crude poly(methylene phenyl isocyanate) used for binding wood panels in OSB (oriented strand board) production. It is a primary form polymer used in isocyanate wood glue systems, providing high functionality and adhesion. This product matches the tariff item's description as crude MDI, polymeric MDI, and is essential for manufacturing engineered wood products.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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.
If the product is a urea resin or a mixture with urea-formaldehyde, rather than pure polymeric MDI.
Urea resins are classified separately under heading 3909.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Declare the product as poly(methylene phenyl isocyanate) in primary form, with a clear description of its use in wood binding
• Ensure the shipment complies with Canada's Food and Drugs Act if used in products contacting food, though this is unlikely for OSB
• Provide a material safety data sheet (MSDS) and ensure proper UN classification for shipping
• Check for any provincial environmental regulations regarding isocyanates
Related Products under Tariff item 3909.31.00
BASF Lupranat MP 102 Polymeric MDI
BASF Lupranat MP 102 is a polymeric MDI (crude poly(methylene phenyl isocyanate)) used primarily in continuous panel lines for rigid polyurethane insulation. It is presented in primary form (liquid) and meets the tariff item's specification for polymeric MDI, as it contains the required isocyanate monomer units. This product is essential for manufacturing rigid foam panels with high thermal insulation properties.
Crude MDI (Polymeric Methylene Diphenyl Diisocyanate)
Crude MDI is a primary form polyisocyanate containing 95% or more methylene phenyl isocyanate monomer units by weight, used as a key raw material in polyurethane production. It is a liquid at ambient temperature and is classified under this tariff item as poly(methylene phenyl isocyanate) (crude MDI, polymeric MDI). This product is essential for manufacturing rigid and flexible polyurethane foams, coatings, and adhesives.
Lupranate M20R Polymeric MDI
Lupranate M20R is a commercial grade crude MDI with high isocyanate functionality, specifically designed for spray foam insulation production. It is a primary form liquid polymer that meets the tariff item's specification for poly(methylene phenyl isocyanate) (crude MDI, polymeric MDI). This product is essential for producing rigid polyurethane foam with excellent thermal and mechanical properties.
Polymeric MDI (PMDI) Resin
Polymeric MDI (PMDI) Resin is a crude poly(methylene phenyl isocyanate) oligomer mixture used in rigid foam manufacturing. It meets the 95% monomer unit threshold per subheading rules, ensuring classification under this tariff item. This primary form amino resin is essential for producing high-performance rigid polyurethane foams for insulation and structural applications.
Polyurethane Precursor P-MDI 44V20L
P-MDI 44V20L is a low-viscosity crude polymeric MDI used for flexible foam precursors, falling under this tariff item per polymer classification rules for monomer predominance. It is a primary form liquid essential for slabstock and molded flexible foam production. This product meets the tariff item's description as poly(methylene phenyl isocyanate) (crude MDI, polymeric MDI).
Suprasec 5005 Crude MDI
Suprasec 5005 is a polymeric MDI variant for CASE (coatings, adhesives, sealants, elastomers) applications, classified in this tariff item for its primary poly(methylene phenyl isocyanate) composition. It is a primary form liquid that meets the subheading rules for monomer predominance. This product is essential for producing high-performance polyurethane systems in various industrial applications.