High-Density Glass Wool Board from Canada
Dense boards of glass wool for fire-resistant barriers and insulation, with silica ≥60%. HTS 7019.80.90.00 covers these as other glass wool products.
Duty Rate — Canada → United States
14.3%
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
• Provide fire rating certifications (e.g
• ASTM E84); label density clearly
• Pitfall: Mixing with foam boards may require set classification review