Insulating Ceramic Filler Bricks from Canada
Low-density ceramic bricks with insulating properties used as fillers in composite building panels. Fired from lightweight clay aggregates at >800°C, classified in HTS 6904.90 as other ceramic support or filler tiles.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Explicitly state non-electrical use to avoid Chapter 85 exclusion
• Thermal conductivity tests aid in proving building insulation intent
• Avoid bulk import with refractories to prevent averaging issues