GOOT BS-10 Soldering Flux Paste is a high-quality, semi-solid ointment flux designed for electronics assembly, hobby projects, and maintenance work. Known for its strong flux performance, low residue, and stable operation, BS-10 ensures bright solder joints and effective oxide removal. This flux paste is ideal for gold-copper alloy substrates, electrical wiring, terminals, connectors, and DIY electronic projects. It is safe, non-toxic, odorless, and reliable for creating high-quality soldering results.

Features:

• Strong flux for bright and clean solder joints

• Semi-solid, non-dumping formulation for easy application

• Removes oxide from metal surfaces to improve solder wetting

• Reduces metal surface tension for smooth and professional solder joints

• Stable performance with low volatility and long life cycle

• Non-toxic, odorless, and safe for hobby and maintenance use

• Ideal for hobby electronics assembly and maintenance engineer supplies

• Assists soldering of banana binding posts, RCA sockets, easy connects, and wire terminals

• Not suitable for printed circuit boards (PCB)

Specifications:

• Model: BS-10

• Net Weight: 50 g

• Composition:

  • Vaseline: 80–90%

  • Zinc chloride: 4–6%

  • Ammonium chloride: 1–3%

  • Paraffin: 6–9%

  • Water: 2–4%

• Flux type: Ointment flux, flux-free sour refining, semi-solid

• Performance: Strong flux, low residue, oxide removal for gold-copper alloy substrate

• Safety: Non-toxic, odorless, safe and reliable

• Application: Hobby electronics, DIY amplifiers, preamps, electrical wiring terminals

How to Use:

• Use a matchstick or toothpick to apply a small amount of BS-10 paste to the leads or metal surfaces to be soldered

• Place the soldering iron tip over the leads and apply solder

• Heat until solder flows freely, then remove solder and iron quickly

• Avoid dipping the soldering iron tip directly into the flux paste

How to Clean:

• Apply isopropyl alcohol (IPA) with a cotton swab to remove flux residue

• Wipe thoroughly using tissue paper or cotton to prevent surface corrosion

Caution:

• BS-10 is acidic; remove all flux residue to avoid corrosion

• Not water-soluble and unsuitable for PCB use

• Applying directly to PCBs may cause electrical leakage and fire

• Keep away from children and store in a cool, dry place

Recommended Use Cases:

• Hobby electronics assembly and maintenance

• DIY amplifiers, preamps, and wiring projects

• Soldering banana binding posts, RCA sockets, wire terminals, and connectors

• Ideal for electrical wiring and component soldering where clean joints are critical

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