Kieselguhr Insulating Brick from China
An insulating ceramic brick produced from kieselguhr (diatomite), offering excellent thermal resistance for boiler linings and high-heat applications. This product is classified under tariff item 6901.00.00 due to its composition from siliceous fossil meals. The brick is shaped and fired, meeting the ceramic product definition in Chapter 69.
Duty Rate — China → Canada
0%
Import Tips
• Ensure the brick is fired after shaping to qualify under Chapter 69; low-temperature curing does not count as firing
• Provide CBSA with a certificate of origin and composition analysis
• Check if the brick is subject to Canadian energy efficiency standards for insulation products