Polyimide Cellular Foam Sheets from China
High-temperature resistant cellular polyimide foam sheets for aerospace thermal insulation. Classified HTS 3921.19.00 as other plastics cellular sheets. Maintains properties up to 300°C.
Duty Rate — China → United States
41.5%
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
• Technical data verifying polyimide chemistry essential for proper 'other plastics' classification
• Industrial end-use documentation prevents consumer article misclassification
• Excludes fittings or composites that would shift headings