Preformed Calcium Silicate Exhaust Duct Insulation from Canada

Molded half-sections for insulating hot gas exhaust ducts in petrochemical plants, leveraging calcium silicate's high-temperature performance. HTS 6806.90.00.20 applies to these sound/heat-insulating molded mineral articles.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

Import Tips

Document custom molding dimensions to distinguish from standard boards

Comply with US fire safety standards (UL listings) for easier entry

Preformed Calcium Silicate Exhaust Duct Insulation from Canada — Import Duty Rate | HTS 6806.90.00.20