Says right on the tub: " Not for electrical use". ???

My small jar says "Not for electronics use or with aluminum or magnesium." I have used it to solder electrical wiring and have not had any issues with it. However I am not a professional and only use it for DIY work.

Does this one instantly sizzel and smoke when toched to the tip of a soldering iron

Yes, it both sizzles and smokes as soon as a soldering iron tip touches it. Marked "Not for use on electronic applications."

I plan to use this to fix lg g4. what is the tool required, such as heating equipment?

Rectorseal is an acid base soldering flux used to clean metal surfaces prior to soldering. As for heat, typically soldering is done with one of the following, soldering gun, soldering iron, pencil iron or a torch.Not sure needs repaired on your LG-G4 but I doubt this product is what you want to use.

Can i use this for electronics?

This is not rosin flux. Even though it says non-acidic it's intended for pipes. I wouldn't use it for electronics. Search for rosin flux if you need flux for electronics.

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🛠️ Elevate your solder game—clean, protect, and perfect every joint!

OPTIMIZED SOLDER FLOW - Heated paste reduces surface tension for flawless, even joints
LEAD ACID FREE FORMULA - Perfectly safe for potable water systems and eco-conscious pros
HYPOALLERGENIC VERSATILE - Safe for copper, brass, and more—ideal for sensitive environments
CORROSION RESISTANT OIL BASE - Protects solder joints for long-lasting durability
DUAL ACTION CLEANING FLUXING - Save time and money with simultaneous cleaning and fluxing

Rectorseal 14000 Nokorode Regular Paste Flux is a 1.7oz lead- and acid-free flux paste designed for efficient cleaning and soldering. Its special oil base protects against corrosion while reducing surface tension when heated, ensuring smooth, even solder flow. Hypoallergenic and safe for use on copper, brass, and potable water systems, it’s the professional’s choice for reliable, long-lasting joints.

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