Magnesium Oxide and Sodium Phosphate Hardener from Canada
Reactive powder blend of magnesium oxide and sodium phosphate that sets foundry molds through chemical hydration. Classified HTS 3824.99.39 as inorganic mixture for no-bake foundry systems. Provides rapid strength development without heat.
Duty Rate — Canada → United States
60%
Rate breakdown
9903.03.1450%Articles the product of Canada as provided in subdivision (b)(3) of U.S. note 51 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Maintain MgO:NaPO4 ratio documentation for consistent reactivity; control particle size <45 microns; separate from moisture during transit