This electronic-quality rosin soldering flux is mixed with petroleum jelly and ideal for electrical and electronic soldering applications.
Actually the best available
Pros: Good heat control, High quality, Deoxidizing
Cons: No liquid version
Best Uses: Large Projects, Minor Projects
Describe Yourself: Professional
It does the job exceptionally well.
As a NASA/MILSPEC/AF soldering pro this is currently the best product available retail. Though wishing they had a liquid version available with needle dropper. I heat mine before using a dropper to have it in a liquid state for better flow control.