HFC-236cb Foam Blowing Agent from China
1,1,1,2,2,3-Hexafluoropropane (HFC-236cb) used as a zero ODP blowing agent in polyurethane spray foam insulation for building applications. Specifically enumerated under HTS 2903.46.10.00 as a saturated fluorinated derivative. Provides superior thermal insulation properties.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Boiling point verification (-1.4°C) required for blowing agent performance specs
• Thermal conductivity data needed for insulation value certification
• Phase-out schedule documentation under AIM Act for HFC imports