Silver Solder Flux for Electronics from Mexico
A rosin-activated liquid flux optimized for silver-based soldering in circuit board assembly. Falls under HTS 3810.90.5000 as other auxiliary preparations for soldering, providing clean joints without residue in precision electronics. Meets J-STD-004 standards for no-clean applications.
Duty Rate — Mexico → United States
15%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Classify by halide content (low-solids/no-clean vs water-soluble) to match correct flux category
• RoHS compliance declaration required for electronics assembly imports
• Shelf life testing documentation prevents rejection due to separation or degradation claims