Silicate CO2 Binder System from Mexico
Sodium silicate solution formulated for gas-catalyzed hardening in foundry core production using CO2 injection. Prepared specifically for foundry molds under HTS 3824.10.00.00. Economical choice for gray iron casting with good collapsibility.
Duty Rate — Mexico → United States
16%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify silicate solids content (typically 40-50%) on commercial invoice for valuation
• CO2 catalyst equipment compatibility data prevents general chemical misclassification
• High pH requires corrosion-resistant packaging and hazmat shipping papers