Kalrez Perfluoroelastomer 6375 from Mexico
Kalrez 6375 is a perfluoroelastomer (FFKM) composed of tetrafluoroethylene, perfluoromethyl vinyl ether, and a cure-site monomer, with the polymer content exceeding 95% by weight. It is supplied in gum form for compounding into O-rings for chemical process industries. As an elastomeric fluoropolymer in primary forms, it falls under tariff item 3904.69.00.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the product is declared as a raw polymer, not a finished O-ring, which would fall under a different heading
• Include the polymer's chemical name and CAS number in the import documentation
• Be prepared to demonstrate that the material is not a separate chemically defined compound