Strontium Carbonate Concrete Shrinkage Compensator from Japan
Inorganic strontium carbonate powder added to cement to compensate drying shrinkage through expansive crystal formation. This product is a prepared additive for concrete, falling under tariff item 3824.40.00.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the product is formulated as a concrete additive and not as a pure chemical compound
• Provide technical data showing its shrinkage-compensating function
• Verify that the strontium carbonate is not classified under Chapter 28