20pcs Solder Wire Lead-free Sn99.3 Cu0.7 Welding Wire Rosin Core Tin Wire 1.2mm 50g

• Safe Solder wire lead-free tin wire 1.2mm 50g, high purity rosin core
  
• High insulation resistance, little residual. Good welding performance to reduce welding time, improve welding efficiency
• Low corrosion, low melting point, fast welding speed, reduce the thermal shock caused by welding to components
• After welding, a protective film is formed on the surface of the solder joint to slow down the oxidation of the solder joint, and keep the solder joint bright
• The solder wire is widely used in electrical soldering, circuit maintenance, cell phone circuits, computer motherboards etc.

Specs:

• Weight: 50g
  
• Diameter: 1.2mm
• Tin: 99.3%; Copper: 7%
• Flux: 2.0%
• Working Temperature: 250℃-300℃

Package Contents:
20*50g Solder Wire Lead-Free 

How to Use:
1. In order to obtain a good welding effect, the parts to be welded must have weldability and keep the metal surface clean, use a suitable soldering iron or soldering stand
2. After the solder iron is electrified, when the temperature of the iron head rises to the operating temperature, the welding operation can be carried out
3. In welding operations, the operator's head should be 20cm away from the parts to be welded
4. Not used for a long time or when the assignment is finished, cover the soldering iron with a layer of tin and then turn off the power switch to protect the iron head and prolong its service life
5. The working area shall be equipped with suitable air purification equipment