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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LA-CO 22194 -Water Soluble, All Weather Copper Flux Paste for Soldering, Brush in Cap, Developed for Plumbing, 4 oz, Made in USA

Product ID: 61297208

💧Water-soluble, no residue

🌡️All-weather, hot & cold use

🛡️Non-toxic, lead-free safety

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Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

499470₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.

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Description

🔥 Flux that flows clean, safe, and strong—because your pipes deserve the best! 💧

SAFE SUSTAINABLE - Non-acidic, lead-free, and non-toxic—engineered for worry-free, eco-conscious soldering.
PRECISION APPLICATION - Brush-in cap design for controlled, mess-free use—perfect for professional plumbers and DIY pros.
BUILT FOR EVERY CLIMATE - All-weather paste performs flawlessly from freezing winters to scorching summers.
CLEAN CLEAR PERFORMANCE - Water-soluble formula leaves zero residue, ensuring pristine plumbing joints every time.
INDUSTRY APPROVED RELIABILITY - Meets ASTM B813 and NSF-61 standards, trusted for potable water systems.

The LA-CO 22194 Copper Flux Paste is a 4 oz, water-soluble, non-toxic soldering aid designed for copper and brass plumbing. It meets ASTM B813 and NSF-61 standards, ensuring safe use in potable water systems. Its all-weather formula works in extreme temperatures, while the brush-in cap allows precise application. Lead-free and non-acidic, it cleans pipes during soldering for smooth, corrosion-free joints.

Specifications

ASIN	B002DLU96O
Best Sellers Rank	#26,951 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #37 in Soldering Flux
Date First Available	May 25, 2017
Department	All Ages
Is Discontinued By Manufacturer	No
Item Weight	5.3 ounces
Item model number	22194
Manufacturer	La-Co
Product Dimensions	1 x 1 x 1 inches

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Excellent communication throughout the order process. Product is perfect.

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