HFC-236cb Foam Blowing Agent from Mexico
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 — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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