Soldering Wire No Name Lut cynowy LC60 2.5 mm 250 g (no flux)

Soldering Wire No Name Lut cynowy LC60 2.5 mm 250 g (no flux) is a flux‑free tin‑based solder wire supplied on a 250 g spool with a 2.5 mm diameter. The alloy is designed for manual and machine soldering of electrical and electronic connections where no internal flux is present. This product is suitable for repair work, prototyping and general metal joining when an externally applied flux is preferred or when flux must be avoided.

Advantages

The flux‑free construction prevents unwanted residue and reduces the risk of contamination on sensitive electronic assemblies and contacts. The relatively large 2.5 mm diameter spool provides a steady feed for hand soldering and mechanical dispensers, while the 250 g supply reduces the need for frequent reel changes during repetitive tasks. The alloy composition offers reliable wetting when appropriate external flux or fluxless techniques are used.

Suitable for

• Repairing electrical and electronic components where flux residue is undesirable
• Prototyping and benchtop soldering requiring controlled application of flux
• General metal joining for small electrical contacts and wires
• Use with external fluxes, flux pens, or no‑clean processes where flux is applied separately

Key specifications

• Alloy type: tin‑based solder (flux‑free formulation)
• Diameter: 2.5 mm
• Spool weight: 250 g
• Form: solid wire on spool for manual or mechanical feeding
• Intended use: electrical and electronic soldering, general metal joining

How to use

Prepare the workpiece by cleaning contact surfaces to remove oxides, oils and other contaminants. If required, apply an appropriate external flux to promote wetting; select a flux compatible with the metal surfaces and assembly requirements. Heat the joint with a suitably rated soldering iron or soldering station until the base metals reach proper soldering temperature, then feed the wire into the joint allowing the alloy to flow and form a fillet. Avoid overheating and remove any excess flux residue if a removable flux was used.

Usage recommendations

For best results, use this flux‑free solder with a matching external flux when joining oxidised or difficult surfaces. Select a soldering iron tip and temperature profile appropriate for the 2.5 mm wire and the components being worked on. Store the spool in a dry environment to prevent contamination and oxidation prior to use.