Glass-Filled Granular PTFE Compound from China
Granular PTFE compounded with 15-25% glass fiber for enhanced mechanical strength, where PTFE remains the predominant polymer (>95% monomer content). Falls under HTS 3904.61.00.10 as filled granular fluoropolymer in primary form per statistical note 1. Commonly used in injection molding for pump housings and electrical insulators.
Duty Rate — China → United States
43.3%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide filler content breakdown (e.g
• 20% glass) in commercial invoice for statistical reporting; ensure granules qualify as primary form, not preforms
• Pitfall: declaring as unfilled if compounding exceeds disclosure thresholds