---
product_id: 61297208
title: "22194 -Water Soluble, All Weather Copper Flux Paste for Soldering, Brush in Cap, Developed for Plumbing, 4 oz, Made in USA"
brand: "la-co"
price: "R451"
currency: ZAR
in_stock: true
category: "La Co"
url: https://www.desertcart.co.za/products/61297208-22194-water-soluble-all-weather-copper-flux-paste-for-soldering
store_origin: ZA
region: South Africa
---

# Water-soluble, no residue All-weather, hot & cold use Lead-free & non-toxic safety 22194 -Water Soluble, All Weather Copper Flux Paste for Soldering, Brush in Cap, Developed for Plumbing, 4 oz, Made in USA

**Brand:** la-co
**Price:** R451
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your plumbing game with flux that works as hard as you do!

## Quick Answers

- **What is this?** 22194 -Water Soluble, All Weather Copper Flux Paste for Soldering, Brush in Cap, Developed for Plumbing, 4 oz, Made in USA by la-co
- **How much does it cost?** R451 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/61297208-22194-water-soluble-all-weather-copper-flux-paste-for-soldering)

## Best For

- la-co enthusiasts

## Why This Product

- Trusted la-co brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First, Always:** Non-acidic, lead-free, and non-toxic composition eliminates corrosion and health concerns for peace of mind.
- • **Effortless Application:** Brush-in cap design and self-cleaning action streamline your workflow, letting solder flow smoothly every time.
- • **Built for Every Climate:** All-weather paste performs reliably from freezing winters to scorching summers—no job too tough.
- • **Clean & Clear Performance:** Water-soluble formula leaves zero residue, ensuring pristine piping and flawless solder joints.
- • **Certified Quality Assurance:** Meets ASTM B813 and NSF-61 standards, guaranteeing top-tier compliance for potable water systems.

## Overview

The LA-CO 22194 Copper Flux Paste is a 4 oz, water-soluble, lead-free soldering paste designed for plumbing professionals. It meets ASTM B813 and NSF-61 standards, ensuring safe use in potable water systems. Its all-weather formula performs reliably across temperature extremes, while its non-toxic, non-acidic composition prevents corrosion and residue buildup, making soldering copper and brass joints cleaner and more efficient.

## Description

Water Soluble Lead Free Flux, Water Soluble Paste, Organic, Working Range Below 800 Deg F, Specific Gravity 1.11, Container Type Jar, Container Size 4 oz BIC, For Joining Copper to Copper and Copper to Brass, Standards NSF-61G, ASTM-B814

## Features

- Water-soluble paste won’t leave residue in water piping
- Meets industry standard ASTM B813 and contains no zinc chloride to reduce corrosion concerns
- Non-acid, non-toxic, and lead-free to eliminate safety concerns
- Cleans pipe upon application, allowing solder to run more smoothly around the pipe
- All-weather formula for use in hot and cold climates. Meets ANSI/NSF Std. 61 specifications for Potable Water use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.6 out of 5 stars 1,092 Reviews |

## Images

![22194 -Water Soluble, All Weather Copper Flux Paste for Soldering, Brush in Cap, Developed for Plumbing, 4 oz, Made in USA - Image 1](https://m.media-amazon.com/images/I/71OrD7epoLL.jpg)

## Questions & Answers

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

**Q: 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?**
A: 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.

## Frequently Bought Together

- LA-CO 22194 -Water Soluble, All Weather Copper Flux Paste for Soldering, Brush in Cap, Developed for Plumbing, 4 oz, Made in USA
- AIM Lead-Free Plumbing Solder, Silver Bearing, 0.125inch dia, 1/2 Lb Spool
- Pro Grade - Acid Brushes - 36 Count 3/8 Inch Boar Hair Acid Flux Brushes

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**Shop now:** [https://www.desertcart.co.za/products/61297208-22194-water-soluble-all-weather-copper-flux-paste-for-soldering](https://www.desertcart.co.za/products/61297208-22194-water-soluble-all-weather-copper-flux-paste-for-soldering)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-10-05*