Hydrated Lime Powder for Construction from Canada
Finely ground slaked lime produced by reacting quicklime with water, used primarily as a mortar additive in bricklaying and plastering. It falls under HTS 2522.20.00.00 as slaked lime, distinct from pure calcium hydroxide preparations in heading 2825. This quicklime-derived product hydrates to form a putty-like consistency for building applications.
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
• Verify purity and reactivity through lab testing to confirm classification as slaked lime, not chemical-grade calcium hydroxide
• Include certificates of analysis showing quicklime origin and hydration process to avoid reclassification under 2825
• Ensure packaging labels distinguish from hydraulic lime or cement blends to prevent customs disputes