Magnesium Chloride Flux for Aluminum Brazing from Mexico
Anhydrous magnesium chloride with alkali chlorides for torch brazing aluminum heat exchangers. Inorganic flux mixture melts at 650°C to clean oxide layer, under 3810.90.2000. Automotive radiator production staple.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Hygroscopic; declare moisture content <1% for stability
• DOT UN 1353 if powdered; ventilation requirements
• Not for magnesium alloys—end-use statement prevents mix-up