Mullite Refractory Brick from Mexico
Mullite refractory bricks, made from sintered mullite (3Al2O3·2SiO2), offer superior creep resistance for glass tank regenerator checkers and rotary kilns. They are fired after shaping to ensure impermeability to gases. This product is classified under tariff item 6902.90.00 as a refractory ceramic constructional good.
Duty Rate — Mexico → Canada
0%
Import Tips
• Document the mullite content and firing temperature to support classification
• Ensure the bricks are fired after shaping per Chapter 69
• Provide the manufacturer's specifications to CBSA for verification