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Small white tub labelled Black Swan 3029 Tuf-Flux soldering paste

Black Swan 3029 2 oz Tuf-Flux Soldering Paste

SKU CH-J6EF-B1763

A 2 oz active soldering paste that cleans while it fluxes for complete bonding on all metals except aluminum and meets Federal Specification O-F-506

  • Product typeSoldering Flux
  • Sold asEach
  • Quick, active paste speeds soldering work
  • No freezing or decomposition keeps flux reliable
  • Odour-free formula improves workshop comfort
  • Cleans while fluxing for stronger solder bonds
  • Meets Federal Spec 0-F-506 for quality assurance

Black Swan 3029 Soldering Paste

Black Swan 3029 is a 2 oz Tuf-Flux soldering paste designed for joining metal components. It suits technicians and hobbyists who need a reliable flux for general soldering tasks on compatible metals. The paste formulation stays workable without freezing or decomposing during storage or use. It produces no noticeable odor while cleaning and fluxing in a single step.

Federal Specification 0-F-506 Compliance

Meeting Federal Specification 0-F-506 confirms the paste meets defined government standards for soldering flux performance. This compliance assures users of consistent chemical activity and cleaning ability for dependable bonds. The paste actively cleans oxidation as it fluxes, promoting complete solder adhesion to the metal surface. No separate cleaning agent is required before applying solder to the prepared joint.

Aluminum Exclusion Limitation

The product is explicitly not for use on aluminum, so buyers needing to solder that metal must choose a different flux. Application is straightforward: apply paste to the joint area, heat, and introduce solder for a cleaned and fluxed connection. The non-freezing characteristic prevents the paste from hardening in the container between jobs. Users should verify base metal compatibility before starting work to avoid failed joints.

How it compares

Measured against everything we stock in Soldering Irons & Stations, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 97% of the 802 comparable items (median $25.99).

Specifications

Product
Product typeSoldering Flux

Questions about this item

Will the flux dry out or separate over time so I have to replace the jar?

The paste is formulated not to freeze or decompose, so it remains usable without drying out or separating.

What stops me from using this flux on aluminium parts?

The product is specified for all metals except aluminium, so it will not clean or flux aluminium surfaces.

Does the paste smell or smoke when I keep the iron on it for a long joint?

The supplier notes there is no odour from the flux during use.

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