Electronic Circuit Board Flux Preparation

Rosin-based flux mixture with activators for soldering printed circuit boards in electronics assembly. HTS 3824.99.93.97 includes such soldering preparations not specified as soldering pastes. Used in high-volume PCB manufacturing.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5%+35.0%40%
🇲🇽Mexico5%+10.0%15%
🇨🇦Canada5%+10.0%15%
🇩🇪Germany5%+10.0%15%
🇯🇵Japan5%+10.0%15%

Alternative Classifications

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

3810.10.00.00Same rate: 40%

If containing solder/paste with metals

Soldering preparations with precious/base metals go to heading 3810.

3403.19.10.00Lower: 35.2% vs 40%

If primarily synthetic surface-active preparations

Cleaning fluxes with high surfactant content classify as preparations in Chapter 34.

3824.99Same rate: 40%

If U.S.-specific for mixtures with rosin oils

Rosin-based mixtures have separate statistical reporting.

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Import Tips & Compliance

Classify with IPC-4101 specifications and halide-free certifications

Distinguish from lead-containing solders under heading 3810

Related Products under HTS 3824.99.93.97

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Specialty blend of nucleating agents and bitterants for ethylene glycol-based anti-freeze used in heavy equipment. HTS 3824.99.93.97 covers this as an unspecified preparation for chemical industries, distinct from retail consumer products. Enhances freeze protection in non-automotive applications.

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