CYNEL TIN SPOOL 2.5mm 250g Sn60Pb40 Rosin Core Solder Wire

With a melting point of just 183–190°C, this Sn60Pb40 solder wire flows smoothly and solidifies fast, making it a reliable choice for electronics repair and general-purpose soldering. The 2.5 mm diameter and 250 g spool provide a practical balance between heat control and material supply for both hobbyists and professionals.

Overview

The CYNEL TIN SPOOL is a rosin-core solder wire composed of 60% tin and 40% lead. Its 2.5% flux content cleans surfaces during soldering, leaving a non-corrosive, non-conductive residue that protects joints without compromising electrical performance. The wire is wound on a plastic spool, ensuring tangle-free dispensing and easy storage.

What stands out

• Sn60Pb40 alloy offers a low melting range for efficient work on heat-sensitive components.
• Rosin core flux removes oxides and improves wetting, resulting in strong, shiny joints.
• Non-corrosive, non-conductive residue eliminates the need for post-solder cleaning in most applications.
• Compliant with ISO 9453 alloy standards, ensuring consistent quality and performance.
• Plastic spool protects the wire from oxidation and mechanical damage during storage.

Technical details

• Alloy composition: Sn60Pb40 (60% tin, 40% lead)
• Wire diameter: 2.5 mm
• Net weight: 250 g
• Melting point: 183–190°C
• Flux type: Rosin core
• Flux content: 2.5%
• Specific gravity: 8.5 g/cm³
• Tensile strength: ~50 MPa
• Electrical conductivity: ~10.5 × 10⁶ S/m
• Residue type: Non-corrosive, non-conductive
• Standard compliance: ISO 9453
• RoHS compliance: No (contains lead)
• Application: General purpose soldering, electronics repair, electrical connections
• Form factor: Wire on spool
• Packaging material: Plastic spool

Our verdict

A dependable leaded solder for everyday electronics work. Its consistent diameter and active flux make it easy to achieve professional-grade joints, while the generous 250 g spool offers excellent value for frequent use.