Cryolite-Sodium Fluosilicate Flux Powder from Mexico
Synthetic cryolite (sodium aluminum fluoride) blended with sodium fluosilicate for aluminum foundry fluxes to reduce metal oxidation. HTS 3824.99.39.90 for multi-fluoride inorganic mixtures in non-ferrous casting. Lowers melting point and improves metal fluidity.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include melting point depression specifications; certify fluoride evolution control measures; comply with aluminum smelter emission standards documentation