Expanded Mineral Wall Filler Compound from Canada
Ready-mixed compound of perlite/vermiculite for fire-rated wall cavity fill. Classified under HTS 6806.90.00 as heat-insulating mineral mixtures.
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
• Mix ratio documentation proving expanded mineral dominance required
• ASTM E119 fire test results support insulating classification