This flux improves electrical solder joints, and is much easier to use than liquid flux.

Dull solder joints are bad work.

This flux in particular helps tinning old wires and facilitates perfect joints when soldering on oxidized and/or cheap circuit boards (i.e. most consumer electronics and appliances).I'll purchase more of this when my current jar runs out.

This paste doesn't burn off like other flux that I've used, which makes for very clean joints with minimal effort.

Produces great solder joints.

I wets solder to make a nice solid joint, it also leaves a layer of rosin to protect the solder joints.

So easy and beautiful beautiful joints.

Helps make a secure, bright solder joint

Has been nice to use to reflow solder on my flight controller, to improve my solder joints

The Rosin helps protect the solder joint against corrosive attack, and the paste form insures that the flux stays put until soldering

I use 60/40 rosin core solder and the additional dab of this flux guarantees a clean, solid solder joint.

Remember, if your solder joint is not shiny you did a botched job

Without it, the joint could become cold or weaken over time, causing several issues

I wipe down the runoff with some acetone so it doesn't ruin the contacts or weaken joints

Perfect for auto & boat electronics where the joint should be protected

When I make a bad solder connection, a little dab of this on the end of a toothpick lets me reflow the bad joint quickly and easily

Really helps get a good, clean solder joint