HFO-1234ze Spray Polyurethane Foam Precursor
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-mixed with polyol as complete B-side
Chemical preparations ready for reaction classified in Chapter 38
If polymerized prior to import
Resulting polymers from HFO-blown foams fall under Chapter 39
Not sure which classification is right?
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Import Tips & Compliance
• Drum return agreements required for bulk chemical imports
• Temperature-controlled shipping mandatory (maintain <50°F)
• SPF contractor end-use letters facilitate customs processing
Related Products under HTS 2903.51.10.00
HFO-1234yf Refrigerant Gas
2,3,3,3-Tetrafluoropropene (HFO-1234yf) is a low global warming potential refrigerant used in automotive air conditioning systems. This unsaturated fluorinated derivative of acyclic hydrocarbons falls under HTS 2903.51.1000 due to its specific chemical structure and halogenated nature. It is supplied in pressurized cylinders for industrial and automotive applications.
HFO-1234ze Foam Blowing Agent
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.
HFO-1336mzz (Z) Heat Transfer Fluid
(Z)-1,1,1,4,4,4-Hexafluoro-2-butene (HFO-1336mzz) is a high-performance heat transfer fluid for immersion cooling systems. This specific unsaturated fluorinated derivative is enumerated in HTS 2903.51.1000. Used in electronics cooling and organic Rankine cycle systems.
HFO-1234yf Automotive Refrigerant Charge
Pre-charged HFO-1234yf refrigerant cylinders for automotive A/C service and retrofitting. Pure 2,3,3,3-Tetrafluoropropene meeting HTS 2903.51.1000 specifications for unsaturated fluorinated acyclic hydrocarbons. Typically 10lb cylinders for professional technician use.
HFO-1234yf Electronic Grade Refrigerant
Ultra-high purity HFO-1234yf (>99.99%) for precision cooling in semiconductor manufacturing. Specifically identified unsaturated fluorinated hydrocarbon under HTS 2903.51.1000. Supplied in low-particulate cylinders for cleanroom use.
HFO-1336mzz Data Center Immersion Fluid
(Z)-HFO-1336mzz dielectric fluid for single-phase immersion cooling of servers. Pure compound of HTS 2903.51.1000 used in high-density computing environments. Non-ozone depleting with 99% lower GWP than traditional fluids.