Tungsten Silicate Binder for Foundry Molds from Germany
A mixture of sodium silicate and tungsten compounds used as a binder in foundry mold production. It provides high-temperature resistance and strength for sand cores in metal casting. Classified under 3824.99.3500 as a mixture of two or more inorganic compounds containing tungsten, specifically for foundry applications.
Duty Rate — Germany → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Verify exact tungsten content and inorganic composition via lab analysis to confirm 3824.99.3500 classification
• Include Safety Data Sheets (SDS) and foundry end-use documentation to avoid misclassification as general chemicals
• Watch for EPA restrictions on tungsten compounds; ensure TSCA compliance for US entry