Sodium Silicate and Potassium Silicate Mold Binder from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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