PQ Sodium Silicate Solution (Metasilicate Grade) from Canada
PQ Sodium Silicate is a liquid metasilicate solution (Na2O·xSiO2) produced commercially as a key sodium silicate under HTS 2839.11.00.00. It functions as a corrosion inhibitor in cooling systems and a binder in adhesives.
Duty Rate — Canada → United States
11.1%
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
Import Tips
• Declare exact SiO2/Na2O ratio on commercial invoice to distinguish metasilicate from other silicates
• Use UN-approved drums for liquid transport due to alkaline corrosive nature
• Obtain prior notice via ACE for bulk chemical imports exceeding thresholds