HFO-1234ze Foam Blowing Agent from Canada
1,3,3,3-Tetrafluoropropene (HFO-1234ze) serves as an environmentally friendly foam blowing agent for polyurethane insulation. Classified under HTS 2903.51.1000 as a specifically named unsaturated fluorinated acyclic hydrocarbon. Used in spray foam and panel production for building insulation.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include SNAP program documentation for foam blowing applications
• Provide stabilization certificates as HFO-1234ze requires inhibitors for safe transport
• Ensure proper placarding for UN1950 aerosols or UN3163 for refrigerated liquids