Im looking for flux to use when soldering circuit boards will this work?

If you are looking for flux to use for soldering circuit boards, you need to consider looking elsewhere. Will it "work", sure, but it may damage the board you're working on. This kind of flux is acid based, it's meant for pipe fitting, not for electronics. The same goes for stained glass, the acids won't damage it. It says so in its description "ideal for use with 95/5 and other common solders." In electronics soldering, leaded solder is preferred. It flows a lot easier, and a long as you don't eat it you won't be poisoned.

Is this an acid flux? thank you.

I Believe do. I got it to solder a glass piece but haven’t used it yet

Will this work with harris sta-brite solder (96% tin/4% silver, melts at 430 f)?

I use this with a Wen 250 watt soldering gun , and it works Great with Light gage solder [ I use it for rewiring chores all the Time ]

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💼 Elevate your craft with waterproof precision—flux that means business!

COMPACT PORTABLE - Small footprint fits easily in your toolkit or workspace
NO BATTERIES NEEDED - Ready to use instantly—no extra power required
VERSATILE USE CASES - Ideal for electronics repair and construction projects alike
PRECISION 113 G WEIGHT - Perfectly portioned for consistent application every time
WATERPROOF RESIN FORMULA - Ensures reliable, moisture-resistant solder joints in any environment

Rectorseal Corp Paste Flux 4 Oz is a compact, 113g waterproof resin flux designed for professional-grade soldering in electronics repair and construction. Its precise weight and portable size make it an essential tool for millennial managers who demand reliability and efficiency in their toolkit.

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Manufacturer	RECTORSEAL CORP
Part number	14010
Item Weight	113 g
Product Dimensions	5.72 x 5.72 x 6.99 cm; 113.4 g
Item model number	14010
Colour	Clear
Material	Resin
Item Package Quantity	1
Number of Pieces	1
Special Features	Waterproof
Specific uses	Electronics Repair, Construction
Batteries included?	No
Batteries Required?	No

RectorsealCorp Paste Flux 4 Oz

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