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
10%
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
• Maintain MgO:NaPO4 ratio documentation for consistent reactivity; control particle size <45 microns; separate from moisture during transit