HDPE Construction Vapor Barrier Film from China
High-density polyethylene film used as a moisture barrier under flooring in construction. Noncellular and not combined with other materials, classified under ethylene polymers. Typically 6-15 mil thick for residential and commercial builds.
Duty Rate — China → United States
39.2%
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
• Include ASTM D4397 compliance certs; non-compliant films face CBP holds
• Measure density accurately—HDPE must confirm ethylene base over 95%
• Avoid bulk packing without separators to prevent customs valuation disputes