Zircon-Based Refractory Ramming Mass from Canada
A dry ramming mix of zircon flour and clay for induction furnace linings, rammed in place for dense structure. Falls under HTS 3816.00.20 as other refractory compositions, resisting molten metal attack up to 1750°C. Key for foundries.
Duty Rate — Canada → United States
13%
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 zircon purity assay (>65% ZrO2) to distinguish from generic mixes
• Use ventilated packaging to prevent dust; comply with IMDG for sea freight