Potassium Fluozirconate and Sodium Silicate Additive from Japan
Complex inorganic mixture of potassium fluozirconate and sodium silicate for anti-veining additives in iron foundry molds. Classified HTS 3824.99.39.90 for specialized foundry process chemicals. Prevents sand expansion defects in heavy section castings.
Duty Rate — Japan → United States
10%
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
• Demonstrate veining reduction test results from foundry trials; ensure fluozirconate purity certification; segregate from moisture to prevent premature zircon precipitation