PTFE Pre-Sintered Powder from Canada
Partially sintered polytetrafluoroethylene powder for improved green strength in molding. Remains HTS 3904.61.00 as thermal processing doesn't constitute chemical modification.
Duty Rate — Canada → United States
15.8%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document thermal history to distinguish from fully sintered articles
• Measure crystallinity to confirm primary polymer status