Sodium Silicate and Potassium Silicate Mold Binder from China
Liquid binder combining sodium silicate and potassium silicate for core production in metal foundries, offering rapid setting and high-temperature stability. Classified under HTS 3824.99.39 as a specific mixture of inorganic silicates designed for foundry mold/core binding, distinct from single-compound preparations. Enables precise casting of complex metal parts.
Duty Rate — China → United States
35%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Label containers clearly with silicate ratio and foundry end-use to support classification; test for heavy metal contaminants per TSCA regulations; use proper UN packaging for corrosive liquids during ocean freight