HFC-236cb Foam Blowing Agent
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-blended with polyols for foam systems
Chemical preparations for rubber/plastic working classified in 3824
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Import Tips & Compliance
• 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
Related Products under HTS 2903.46.10.00
HFC-227ea Fire Extinguishing Agent
Pure 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea) used as a clean fire suppressant in total flooding fire suppression systems for data centers and electronics. This saturated fluorinated acyclic hydrocarbon falls under HTS 2903.46.10.00 as a specifically named halogenated derivative. It leaves no residue, making it ideal for sensitive environments.
HFC-236fa Refrigerant Gas
1,1,1,3,3,3-Hexafluoropropane (HFC-236fa) supplied in high-pressure cylinders for use as a specialty refrigerant in military cooling systems and centrifugal chillers. Classified under HTS 2903.46.10.00 as a named saturated fluorinated hydrocarbon derivative. Known for its zero ozone depletion potential.
HFC-227ea Medical Propellant
Pharmaceutical grade HFC-227ea (1,1,1,2,3,3,3-Heptafluoropropane) used as a non-flammable propellant in metered dose inhalers for asthma medications. This pure chemical compound is specifically listed under HTS 2903.46.10.00. Meets USP/NF standards for inhalation drug delivery.
HFC-236ea Electronic Cleaning Solvent
1,1,1,2,3,3-Hexafluoropropane (HFC-236ea) used as a precision cleaning solvent for removing flux residues from electronic circuit boards. Falls under HTS 2903.46.10.00 as a named halogenated hydrocarbon. High dielectric strength and fast evaporation rate.
HFC-236fa Specialty Heat Transfer Fluid
High purity HFC-236fa (1,1,1,3,3,3-hexafluoropropane) used in liquid immersion cooling systems for high-performance computing and data centers. Classified under HTS 2903.46.10.00 per chapter notes for pure halogenated hydrocarbons. Excellent thermal stability up to 250°C.
HFC-227ea Calibration Gas Standard
Certified reference HFC-227ea gas mixtures at ppb/ppm levels in nitrogen balance for atmospheric monitoring and gas chromatography calibration. Pure component classified under HTS 2903.46.10.00 with trace analysis certificate. NIST-traceable concentration verification.