To begin soft soldering with a soldering iron, you will need to use an input material known as solder. The most common type of alloys found in solders contain tin, as it is a soft metal that melts below 850° and offers little resistance to desoldering.
To start soldering you will need the following items:
Soldering iron: The first thing you need is the correct tool. Soldering irons correctly distribute the amount of heat needed to melt the solder, in order to create a joint between two metal objects.
Flux solder paste: Flux plays an essential part in the soldering process. Its primary function is to isolate the material from contact with the air. It dissolves and eliminates oxides that can be formed when metal is heated. It helps the solder to bond to the metal surface, by keeping it fluid and preventing it from forming into beads, which will happen on any oxidized surface
Solder alloy: The solder used will be made of a certain type of metal alloy. The type of solder alloy used will determine the melting point, the fluidity and therefore the strength of the bond that is made between the two objects being joined together.