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PTFE Aerospace Grade Resin

Polytetrafluoroethylene meeting aerospace specifications (AMS 3660) for seals and bearings. HTS 3904.61.00 classification as specification-grade pure PTFE polymer.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.8%+37.5%43.3%
🇲🇽Mexico5.8%+10.0%15.8%
🇨🇦Canada5.8%+10.0%15.8%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8484.90.00Lower: 40% vs 43.3%

If finished seal assemblies

Sealing products supersede raw material classification.

3904.69Lower: 19% vs 43.3%

If filled aerospace grades

Glass/bronze-filled PTFE uses 3920.99.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Include AMS 3660/3661 certification and lot traceability

• Declare tensile strength/elongation per aerospace specs