Kester 24-6040-0027 - (1) Spool, 1 Pound per Spool Diameter: 0.031" Inch (0.80mm) Alloy: 60% Tin / 40% Lead (Product contains Halogen) Core / Flux Type: Rosin Core / 44 Flux (3.3%) Authentic ...

However, it's toxic and bad for the environment. Many solders contain a rosin core, which aids in cleaning the wires you're soldering and improves the integrity of the solder. To create a strong ...

For some of us the smell of rosin soldering flux vaporizing from the tip of an iron as a project takes shape is as evocative as the scent of a rose on a summer’s day. We’ve certainly breathed ...

It serves the purpose of excluding oxygen from a solder joint as it solidifies, and in most cases its base is derived from pine rosin. Most of us just buy flux, but [pileofstuff] is having a go at ...