Calcium Chloride and Sodium Silicate Foundry Binder from Mexico
A mixture of calcium chloride and sodium silicate used as a binder in foundry mold preparation to harden sand molds for metal casting. This product falls under HTS 3824.99.39 as a mixture of two or more inorganic compounds prepared for industrial foundry applications, not elsewhere specified. It provides strong adhesion and heat resistance during casting processes.
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
• Verify exact compound ratios meet 'mixture of two or more inorganic compounds' criteria to avoid reclassification; obtain supplier certifications for foundry-grade purity; ensure SDS includes EPA waste disposal instructions to prevent customs holds