Glass-Filled Granular PTFE Compound from Mexico
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 — Mexico → United States
15.8%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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