Rosin
Flux in the solid state is a brittle amorphous substance consisting of pieces of a vitreous type. What rosin is made of is produced by purification of coniferous resins by special chemical reactions. Rosin for soldering is used to resist oxidative processes that can destroy the compound during operation, an element resistant to loss of chemical properties when exposed to high temperatures.
The composition of rosin allows you to reliably connect metals by the soldering process.
The liquid state when heated promotes the spreading of the material over the elements in the desired shape. Before you find out what rosin is needed for, it is important to understand the chemical properties of the composition. The raw material from which the resin is made has the properties of a dielectric, but this does not affect the ability of the connection to transmit electric current.
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