Zircon-Based Gunning Refractory Mix from Canada
A dry refractory powder of zircon flour and clay binders for pneumatic gunning onto furnace walls. Falls under HTS 3816.00.20.50 as other refractory concretes, ideal for quick maintenance in glass and aluminum melting furnaces up to 1750°C. Provides excellent corrosion resistance against molten glass.
Duty Rate — Canada → United States
13%
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
• Zircon content (>60%) must be certified; provide abrasion and thermal shock test data
• Gunning-grade particle size distribution specs prevent confusion with general zircon powders