Perlite Aggregate Insulating Ceramic Brick from United States
A fired solid brick containing expanded perlite for lightweight heat insulation, suitable for passive house construction and cavity walls. The perlite aggregate is a siliceous material that, when fired, forms a ceramic body. It is classified under tariff item 6904.10.00 as a building brick.
Duty Rate — United States → Canada
3%
Import Tips
• Confirm the firing temperature exceeds 800°C to meet Chapter 69 requirements
• If the perlite content is high, verify the product is not classified as a siliceous earth under heading 6901
• Include the product's thermal conductivity data on the invoice to support the heat-insulating claim