Potassium Fluozirconate and Sodium Silicate Additive from Canada
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 — Canada → United States
60%
Rate breakdown
9903.03.1450%Articles the product of Canada as provided in subdivision (b)(3) of U.S. note 51 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 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