HFO-1234ze Spray Polyurethane Foam Precursor from China
HFO-1234ze (1,3,3,3-Tetrafluoropropene) specifically formulated as B-component blowing agent for spray polyurethane foam systems. Meets HTS 2903.51.1000 as pure named compound though destined for immediate chemical reaction. Supplied in returnable steel drums.
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
• Drum return agreements required for bulk chemical imports
• Temperature-controlled shipping mandatory (maintain <50°F)
• SPF contractor end-use letters facilitate customs processing