Keep surface to bright

Easy handling of the soldering iron

Solder will never stick to a dirty surface

Proper amount of heat absorbed

Use solder with high melting point

Prepare metal edges clean

Correct solder and flux to be selected

Use solder with low melting point

Application of incorrect flux

Solder as much surface as possible

Move the soldering iron slowly along the work

The point of the soldering iron touches only a portion of the area