---
product_id: 1908318
title: "Rubyfluid Soldering Flux – General Purpose Liquid Flux for Plumbing, Stained Glass & Metalwork | Water-Soluble, Non-Corrosive, Easy Cleanup - 1 Pint Bottle"
brand: "rubyfluid"
price: "203.10 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "Rubyfluid"
url: https://www.desertcart.tn/products/1908318-rubyfluid-soldering-flux-general-purpose-liquid-flux-for-plumbing-stained
store_origin: TN
region: Tunisia
---

# Water-soluble, easy cleanup, non-corrosive Fast-acting, superior wetting formula Versatile for plumbing, stained glass & metalwork Rubyfluid Soldering Flux – General Purpose Liquid Flux for Plumbing, Stained Glass & Metalwork | Water-Soluble, Non-Corrosive, Easy Cleanup - 1 Pint Bottle

**Brand:** rubyfluid
**Price:** 203.10 DT
**Availability:** ✅ In Stock

## Summary

> 🔥 Solder like a pro, clean like a boss! 💧

## Quick Answers

- **What is this?** Rubyfluid Soldering Flux – General Purpose Liquid Flux for Plumbing, Stained Glass & Metalwork | Water-Soluble, Non-Corrosive, Easy Cleanup - 1 Pint Bottle by rubyfluid
- **How much does it cost?** 203.10 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/1908318-rubyfluid-soldering-flux-general-purpose-liquid-flux-for-plumbing-stained)

## Best For

- rubyfluid enthusiasts

## Why This Product

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

## Key Features

- • **Workshop-Ready Size:** 1 pint resealable bottle designed to prevent spills and keep your workspace efficient and tidy.
- • **Eco-Friendly Cleanup:** Water-soluble formula means no harsh chemicals—just rinse and protect your craft.
- • **Speed Meets Precision:** Rapid wetting action ensures clean, strong solder bonds that reduce oxidation and rework.
- • **Trusted Legacy Since 1903:** Join generations of pros who rely on Rubyfluid’s proven performance and American-made quality.
- • **Universal Soldering Powerhouse:** One flux to master plumbing, HVAC, stained glass, and metalwork with flawless joints every time.

## Overview

Rubyfluid Soldering Flux is a versatile, water-soluble liquid flux designed for plumbing, stained glass, HVAC, and metalwork. Its fast-acting formula promotes superior wetting and strong solder joints on copper, brass, and stainless steel, while ensuring easy, residue-free cleanup without corrosion. Trusted by professionals since 1903 and made in the USA, it comes in a convenient 1 pint resealable bottle ideal for both workshop and professional use.

## Description

RubyFluid Stainless Steel Flux is specifically formulated for soldering stainless steel.

Review: Ruby Fluid It Just Works - 25+ years ago an older gentlemen who ran a professional sheet metal fabrication shop in our town said he would teach me how to solder using large soldering irons and a propane torch after hours one day-- I simply had to show up, keep my mouth shut, and do what he said--his company made anything one could dream of from metal--massive custom copper stove hoods, 10 feet tall stainless steel bird cages, to antique car hoods. Concerning Ruby Fluid flux he said, "Son, you can solder toilet paper to railroad iron using this stuff as long as you first get the surfaces clean, degreased, and then know how to neutralize the flux once you're done." He wasn't lying either. I soldered a lot of expensive sheet brass together back then on a personal project without incident using Ruby Fluid. The joints turned out very professional for a newbie. I am glad to find Ruby Fluid for sale here. It works like magic.
Review: Works - It works well for my projects.

## Features

- Versatile All-Purpose Flux – Ideal for use in plumbing, stained glass, electronics, HVAC, and general metalwork; delivers reliable, high-quality soldering results every time.
- Fast-Acting, Superior Wetting – Rubyfluid's proven formula promotes rapid wetting and strong solder joints, reducing oxidation and ensuring clean, even flow on copper, brass, and other metals.
- Water-Soluble & Easy to Clean – No harsh solvents needed—simply rinse with water after soldering for a residue-free, corrosion-free finish that protects your work long term.
- Trusted by Professionals Since 1903 – Manufactured in the USA, Rubyfluid has been the go-to soldering flux for tradespeople, hobbyists, and artisans for over a century.
- 1 Pint Value Size Bottle – Conveniently sized for workshops and professional use; the resealable container helps prevent spills and prolongs shelf life.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000CNMHJW |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #28,415 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #37 in Soldering Flux |
| Customer Reviews | 4.7 4.7 out of 5 stars (267) |
| Date First Available | April 4, 2004 |
| Included Components | 8 ounces of flus |
| Item Package Quantity | 1 |
| Item Weight | 1.33 pounds |
| Item model number | FLSRUBYFLUIDPT |
| Manufacturer | Ruby Chemical |
| Material | ruby |
| Part Number | RUBYFLUIDPT |
| Product Dimensions | 11 x 4 x 10 inches |

## Images

![Rubyfluid Soldering Flux – General Purpose Liquid Flux for Plumbing, Stained Glass & Metalwork | Water-Soluble, Non-Corrosive, Easy Cleanup - 1 Pint Bottle - Image 1](https://m.media-amazon.com/images/I/31aX1EHVQML.jpg)
![Rubyfluid Soldering Flux – General Purpose Liquid Flux for Plumbing, Stained Glass & Metalwork | Water-Soluble, Non-Corrosive, Easy Cleanup - 1 Pint Bottle - Image 2](https://m.media-amazon.com/images/I/418qYDDZwdL.jpg)
![Rubyfluid Soldering Flux – General Purpose Liquid Flux for Plumbing, Stained Glass & Metalwork | Water-Soluble, Non-Corrosive, Easy Cleanup - 1 Pint Bottle - Image 3](https://m.media-amazon.com/images/I/41CIaBUWYvL.jpg)
![Rubyfluid Soldering Flux – General Purpose Liquid Flux for Plumbing, Stained Glass & Metalwork | Water-Soluble, Non-Corrosive, Easy Cleanup - 1 Pint Bottle - Image 4](https://m.media-amazon.com/images/I/41IgaEd+KnL.jpg)
![Rubyfluid Soldering Flux – General Purpose Liquid Flux for Plumbing, Stained Glass & Metalwork | Water-Soluble, Non-Corrosive, Easy Cleanup - 1 Pint Bottle - Image 5](https://m.media-amazon.com/images/I/51+M8cMbfcL.jpg)

## Questions & Answers

**Q: Does this ruby fluid work on 60/40 lead I do stainedglass?**
A: From my experience with this Flux it should work gust fine. 
It provides the cleaning, you need to be sure you have the right heat for the bond.

**Q: What kind of shelf life does it have, when is the expiration date?**
A: I think it is almost all inorganic chemicals. Not sure why it would have much of a shelf life, but maybe the manufacturer has some info. I looked over the MSDS and there was nothing there that raised concerns about changes over time. I guess it could dry out if you left the top off. I'll be curious to see what others say.

**Q: I am pouring multing lead in a mold around stainless steel wire will this help it to bond tighly to the wire ???**
A: I don't know how to answer your question about pouring multing lead a round stainless steel wire? I don't think rubyfluid is what you're looking for??? I originally purchased the Ruby fluid or soldering copper on the top of my chimney before I sold my house I replaced the whole top of the chimney with copper and soldered the joints using ruby fluid the flux for soldering the copper.

**Q: How many ounces is it?**
A: 1 Pint is 16 fluid ounces.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Ruby Fluid It Just Works
*by S***H on June 8, 2021*

25+ years ago an older gentlemen who ran a professional sheet metal fabrication shop in our town said he would teach me how to solder using large soldering irons and a propane torch after hours one day-- I simply had to show up, keep my mouth shut, and do what he said--his company made anything one could dream of from metal--massive custom copper stove hoods, 10 feet tall stainless steel bird cages, to antique car hoods. Concerning Ruby Fluid flux he said, "Son, you can solder toilet paper to railroad iron using this stuff as long as you first get the surfaces clean, degreased, and then know how to neutralize the flux once you're done." He wasn't lying either. I soldered a lot of expensive sheet brass together back then on a personal project without incident using Ruby Fluid. The joints turned out very professional for a newbie. I am glad to find Ruby Fluid for sale here. It works like magic.

### ⭐⭐⭐⭐⭐ Works
*by M***E on December 23, 2025*

It works well for my projects.

### ⭐⭐⭐⭐⭐ Awesome Product
*by L***Y on December 28, 2022*

This Ruby Liquid Flux is so much easier to work with and less messy than the flux paste that is out there. I highly recommend this product. Cut the bristles short on your brush and you wont waste any flux and it applies directly to where you want it! I would give 10 stars if I could!

## Frequently Bought Together

- Ruby Chemical FLSRUBYFLUIDPT 1PT Liquid Rubyfluid
- 50/50 Tin-Lead Bar Solder - 1 lb. (4 x 1/4 lb. Sticks), Made in USA
- Pro Grade - Acid Brushes - 36 Count 3/8 Inch Boar Hair Acid Flux Brushes

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-23*