Silver Solder Flux for Electronics
A rosin-activated liquid flux optimized for silver-based soldering in circuit board assembly. It provides clean joints without residue in precision electronics work. This product falls under tariff item 3810.90.00 as an auxiliary preparation for soldering.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the flux is specifically formulated for pickling metal surfaces
Pickling preparations are classified separately from other soldering auxiliaries.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the flux is classified as a preparation, not as a separate chemical compound
• Verify that the rosin content complies with Canadian environmental regulations
• Keep technical data sheets to support the product's intended use in electronics assembly
Related Products under Tariff item 3810.90.00
Ammonium Persulfate Copper Pickling Powder
Crystalline ammonium persulfate used to pickle copper strip before plating, acting as an inorganic oxidizer to remove tarnish without acid attack. This product is a pickling preparation for metal surfaces, classified under tariff item 3810.90.00 as 'Other' preparations.
Anti-Spatter Welding Spray
A silicone-free aerosol spray that prevents weld spatter adhesion to fixtures and torches. This product is classified under tariff item 3810.90.00 as an auxiliary preparation for welding, improving productivity in MIG/TIG operations. It is non-toxic and easy to apply.
Aromatic-Enhanced Steel Pickling Solution
A liquid pickling preparation designed to clean steel surfaces prior to fabrication, containing over 5% aromatic hydrocarbons such as benzene derivatives to enhance rust removal and surface activation. This product falls under tariff item 3810.90.00 as a pickling preparation for metal surfaces, which is included in the heading for auxiliary preparations for soldering, brazing or welding.
Aromatic Pickling Inhibitor for Steel
An additive concentrate with aromatic amines exceeding 5%, used in acid pickling baths to prevent hydrogen embrittlement on steel strip. This product is an auxiliary preparation for metal surface pickling, falling under tariff item 3810.90.00 as 'Other' preparations for pickling, soldering, brazing or welding.
Aromatic Welding Electrode Coating Powder
A powder used as a coating for MIG welding electrodes, incorporating modified aromatic resins over 5% by weight for arc stability and slag formation control. This product is an auxiliary preparation for welding, classified under tariff item 3810.90.00 as 'Other' preparations for welding electrodes or rods.
Benzene Derivative Soldering Paste for Electronics
A high-aromatic soldering paste containing over 5% benzene-based modifiers, used for surface-mount electronics assembly to provide flux action and solder alloy dispersion. This product is an auxiliary preparation for soldering, falling under tariff item 3810.90.00 as 'Other' preparations in the heading.