Natural Hydraulic Lime NHL 3.5
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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is quicklime without hydraulic properties
Quicklime is classified separately, and NHL 3.5's hydraulic nature is the basis for its classification.
If the product is slaked lime without hydraulic properties
Slaked lime is a different product, and hydraulic lime's setting mechanism is distinct.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• 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
Related Products under Tariff item 2522.30.00
Emoder Natural Hydraulic Lime
Emoder Natural Hydraulic Lime is a commercial-grade hydraulic lime produced by calcining marlstone, which contains natural clay impurities that impart hydraulic properties. It is used in conservation projects for pointing and rendering, where it cures effectively in damp conditions. This product falls under tariff item 2522.30.00 as it is a hydraulic lime, distinct from quicklime or slaked lime.
Hotkin Natural Hydraulic Lime NHL 5
Hotkin Natural Hydraulic Lime NHL 5 is an eminently hydraulic lime made from silica-rich limestone, providing high strength for structural mortars and hydraulic renders. It hardens through both carbonation and hydration, making it suitable for demanding applications. This product is classified under tariff item 2522.30.00 as a hydraulic lime, not a quicklime or slaked lime.
Natural Hydraulic Lime NHL 2
Natural Hydraulic Lime NHL 2 is a powdered binder made from limestone with natural silica and alumina impurities, calcined to develop hydraulic properties. It sets and hardens through a chemical reaction with water, making it suitable for lime mortars in restoration. This product is classified under tariff item 2522.30.00 as hydraulic lime, distinct from non-hydraulic limes.
Solem Natural Hydraulic Lime Powder
Solem Natural Hydraulic Lime Powder is finely ground from naturally impure chalk, used in lime-pozzolan mortars for sustainable construction. It develops strength through hydraulic set in low-permeability environments, making it a versatile binder. This product is classified under tariff item 2522.30.00 as hydraulic lime, which is a specific product within the lime heading.