Polyimide Cellular Foam Sheets from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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