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Aluminum Brazing Flux Paste

Aluminum brazing flux paste, chloride-free, formulated for torch brazing aluminum heat exchangers in automotive radiators. It contains fluorides that remove the aluminum oxide layer during brazing, qualifying as an auxiliary preparation for soldering or brazing under tariff item 3810.10.00.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳ChinaFree—Free
🇲🇽MexicoFree—Free
🇺🇸United StatesFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3810.90.00Same rate: Free

If the flux is sold separately without metal powders

This subheading covers other auxiliary preparations for soldering, brazing, or welding, not including metal powders or pastes.

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 product is labeled as a brazing flux, not a separate chemical compound, to avoid reclassification

• Verify the fluoride content and provide a safety data sheet (SDS) to CBSA if requested

• Confirm the paste is not put up for retail sale as a set with other items

Related Products under Tariff item 3810.10.00

Brass Brazing Paste with Silver

Brass brazing paste alloyed with silver, used for plumbing fittings and marine hardware. It consists of metal powders suspended in a flux binder, providing high fluidity for capillary action, and falls under tariff item 3810.10.00 as a brazing paste of metal and other materials.

Citric Acid Stainless Steel Passivation Gel

Citric acid-based thixotropic gel for passivating stainless steel welds and surfaces, removing free iron without chlorides. It acts as a pickling preparation that restores the chromium oxide layer, meeting the description of tariff item 3810.10.00.

Copper Phosphorus Brazing Paste

Self-fluxing copper-phosphorus brazing paste for copper-nickel heat exchanger tubes, containing 7% phosphorus for fluxing during brazing at 700-850°C. It is a brazing paste of metal with auxiliary material, classifiable under tariff item 3810.10.00.

Electroless Nickel Plating Accelerator

An Electroless Nickel Plating Accelerator is a fluoride-palladium solution used to activate metal surfaces before electroless nickel plating. It removes passive oxide films, ensuring proper adhesion of the nickel layer. This product falls under tariff item 3810.10.00 as a pickling preparation for metal surfaces.

Hardfacing Welding Powder Alloy 600

Hardfacing Welding Powder Alloy 600 is a nickel-chromium alloy powder used in plasma transferred arc welding to deposit wear-resistant coatings on valve components. It consists of metal powders and other materials, making it classifiable under tariff item 3810.10.00 as a welding powder. The alloy provides corrosion and wear resistance in demanding industrial applications.

Hydrochloric Acid Metal Pickling Solution

Concentrated hydrochloric acid-based solution formulated to remove rust and scale from steel surfaces before painting or galvanizing. It is a pickling preparation specifically for metal surfaces, falling under tariff item 3810.10.00.