Potassium Fluozirconate and Sodium Silicate Additive from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Demonstrate veining reduction test results from foundry trials; ensure fluozirconate purity certification; segregate from moisture to prevent premature zircon precipitation