Natural Hydraulic Lime NHL 3.5 from United States
Natural Hydraulic Lime NHL 3.5 is a moderately hydraulic lime derived from argillaceous limestone, fired at low temperatures to retain pozzolanic reactivity. It offers balanced strength for lime mortars in masonry restoration and breathable plasters. This product is classified under tariff item 2522.30.00 as hydraulic lime, which is a distinct category from quicklime and slaked lime.
Duty Rate — United States → Canada
0%
Import Tips
• Verify that the product has not been subjected to processes beyond those allowed in Chapter 25 Note 1, such as calcination beyond normal production
• Ensure the lime is free from added anti-dusting agents that could make it specific-use
• Provide a certificate of origin and product specification to streamline customs clearance