Insulating Ceramic Filler Bricks from Mexico
Insulating ceramic filler bricks are low-density bricks fired from lightweight clay aggregates at temperatures exceeding 800°C, giving them thermal insulation properties. They are used as fillers in composite building panels, providing structural support and insulation. These products fall under tariff item 6904.90.20 as support or filler tiles, as they are fired ceramic products not classified as flooring blocks.
Duty Rate — Mexico → Canada
Import Tips
• Ensure the bricks are fired above 800°C and not merely dried or cured, as lower-temperature products are excluded from Chapter 69
• Provide documentation from the manufacturer confirming the firing temperature and clay composition to support classification
• Verify that the bricks are not classifiable as refractory articles (heading 6902) or electrical insulators (heading 8546), which would change the tariff item