Phosflex 71B Flame Retardant from Japan
Phosflex 71B is a commercial grade of bis(polyoxyethylene) methylphosphonate, used as a low-viscosity reactive flame retardant in polyurethane foams and coatings. It falls under tariff item 3907.21.00 because its chemical structure matches the named product, and it is presented in primary form as a liquid.
Duty Rate — Japan → Canada
0%
Import Tips
• Confirm the product's viscosity and purity with a certificate of analysis, as additives like stabilizers must be below 1% by weight to avoid reclassification
• Ensure the shipment is labeled clearly as bis(polyoxyethylene) methylphosphonate for customs clearance