Weld Backing Flux Tape from Mexico
Adhesive tape impregnated with ceramic flux for root pass backing in pipe welding. HTS 3810.90.5000 includes this innovative welding auxiliary preparation, providing gas shielding without purging. Dissipates completely post-weld.
Duty Rate — Mexico → United States
15%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Burn-off temperature curve confirms welding auxiliary status
• Adhesive carrier specs avoid plastic tape reclassification
• Pipe diameter compatibility range for pipeline application validation