Zircon-Based Refractory Ramming Mass from Mexico
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 — Mexico → United States
13%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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