Polyurethane Construction Adhesive from China
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.
Duty Rate — China → United States
37.1%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Verify polyurethane monomer content exceeds 95% by weight via lab testing to meet subheading note (a)(1); provide supplier certificates of analysis
• Common pitfall: misclassifying as finished sealant under 3214 if over 50% solvent
• Declare as 'primary form' to avoid parts classification