Since this is water soluble, can it be used on pcb's and electronics? will it corrode over time? it's non-acid.

NO....do not use this on electronics or pcb's as it will corrode with that green corrosion. I have tried it and that is what happens. In a water pipe it is fine as it all washes away naturally.

I have a ring that snapped and i want to fix it, i can still wear the ring but the part where it snapped pinches the skin. can i use it on jewelry?

This would likely corrode the ring badly. Its removes oxidized layers so solder can stick to the base metal. It's very acidic and corrosive.

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🔧 Solder with Confidence: The Future of Plumbing is Here!

SAFETY FIRST - Non-toxic and lead-free for peace of mind in every project.
VERSATILE USE - Perfect for both hot and cold climates, ensuring reliability.
CORROSION CONTROL - No zinc chloride means reduced corrosion concerns.
INDUSTRY APPROVED - Meets ASTM B813 and ANSI/NSF Std. 61 for potable water.
SOLDERING MADE SIMPLE - Experience seamless soldering with our residue-free formula.

La-Co22194 is a water-soluble, all-weather copper flux paste designed for efficient soldering in plumbing applications. This 4 oz paste is non-toxic, lead-free, and meets industry standards, ensuring a safe and effective solution for both hot and cold climates.

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