HFO-1234ze Spray Polyurethane Foam Precursor from China
HFO-1234ze spray polyurethane foam precursor is 1,3,3,3-tetrafluoropropene formulated as a B-component blowing agent. The product is the pure named compound of tariff item 2903.51.00. Although destined for chemical reaction in foam systems, it is imported as the pure chemical.
Duty Rate — China → Canada
0%
Import Tips
• Ensure the product is pure HFO-1234ze without added catalysts or surfactants
• Verify the B-component designation does not include other chemicals
• Provide the chemical composition to support classification