---
product_id: 47876993
title: "FLUX 125GRM BRUSH IN CAP"
brand: "la-co"
price: "$61.44"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.ec/products/47876993-flux-125grm-brush-in-cap
store_origin: EC
region: Ecuador
---

# Water-soluble for quick cleanup Built-in brush for precise application Non-acid, non-toxic & lead-free safety FLUX 125GRM BRUSH IN CAP

**Brand:** la-co
**Price:** $61.44
**Availability:** ✅ In Stock

## Summary

> 🛠️ Flux your way to flawless joints—clean, safe, and precise every time!

## Quick Answers

- **What is this?** FLUX 125GRM BRUSH IN CAP by la-co
- **How much does it cost?** $61.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/47876993-flux-125grm-brush-in-cap)

## 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

- • **Trusted Quality & Value:** Highly rated by thousands, delivering professional results without breaking the bank.
- • **Universal Compatibility:** Works seamlessly with all lead-free and common soft solders—no zinc chloride needed.
- • **Swift & Clean Application:** Water-soluble formula flushes easily, saving you time and hassle.
- • **Precision at Your Fingertips:** Integrated brush cap ensures mess-free, accurate flux application every time.
- • **Safe for You & the Environment:** Non-acidic, lead-free, and non-toxic—engineered for peace of mind on every project.

## Overview

The LA-CO FLUX 125GRM Brush in Cap is a water-soluble, non-acidic, and lead-free soldering flux paste designed for fast, clean flushing from pipelines. It includes a built-in brush for precise application and is compatible with all lead-free and common soft solders, making it a safe and versatile choice for professional and DIY metalwork.

## Description

Free delivery and returns on all eligible orders. Shop LA-CO FLUX 125GRM BRUSH IN CAP.

Review: excellent quality - does exactly what it should. No issues using it and thankfully no leaks after. Good price too.
Review: Good flux paste - Absolutely brilliant

## Features

- Regular Flux is water soluble for faster flushing from pipe lines
- Non-acid, non-toxic and lead-free
- Regular Flux contains no zinc chloride and will work with all lead-free and common soft solders
- Brush included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002OB4CIE |
| Best Sellers Rank | 128,326 in DIY & Tools ( See Top 100 in DIY & Tools ) 101 in Solder |
| Brand | LA-CO |
| Brand Name | LA-CO |
| Contains Liquid Contents? | Yes |
| Customer Reviews | 4.6 out of 5 stars 2,037 Reviews |
| Global Trade Identification Number | 05017341221952 |
| Item Form | Granule |
| Item Type Name | LA-CO Regular Soldering Flux Paste 125g |
| Item Volume | 125 Millilitres |
| Item Weight | 150 Grams |
| Item form | Granule |
| Item height | 2.36 inches |
| Item volume | 125 Millilitres |
| Manufacturer | LA-CO Industries, Inc |
| Material Features | WRAS approved, pH-Neutral |
| Material Type Free | Acid Free |
| Material feature | WRAS approved, pH-Neutral |
| Number of Items | 1 |
| Scent | grams |
| Special Features | Non Toxic |
| Specific Uses For Product | grams |
| Specific uses for product | grams |
| Surface Recommendation | Metal |
| UPC | 616268368655 |
| Unit Count | 125.0 Grams |

## Product Details

- **Brand:** LA-CO
- **Item form:** Granule
- **Scent:** grams
- **Specific uses for product:** grams
- **Material feature:** WRAS approved, pH-Neutral
- **Item volume:** 125 Millilitres
- **Unit count:** 125.0 gram
- **Surface recommendation:** Metal
- **Material Type Free:** Acid Free
- **Special feature:** Non Toxic

## Images

![FLUX 125GRM BRUSH IN CAP - Image 1](https://m.media-amazon.com/images/I/51IjoDuG1nL.jpg)

## Questions & Answers

**Q: Is this flux suitable for soldering copper foiled stained glass items and art? I would appreciate your advise.**
A: I have not used it for such and in the past when soldering copper foil around glass I have always found it best to use pre-fluxed solder because it enables one to limit the soldered area.  LO CO is a messy flux to manage

**Q: is it an acid flux**
A: The product does not seem to be acid base material. I tell what it works very indeed and have no complaints

**Q: Is this okay to soldering mobile and other devices?**
A: I think you'd struggle to apply it on microchips/ electronic circuits. This is aimed at plumbing pipework. For PCB and electronic work I would advise looking for a flux 'pen' applicator...this is FAR too thick for what you're looking for.

**Q: Is this flux suitable for brazing**
A: No, it is the wrong kind, check out  " how to brew by John Palmer"  for chapter and verse.

## Customer Reviews

### ⭐⭐⭐⭐⭐ excellent quality
*by M***W on 18 April 2023*

does exactly what it should. No issues using it and thankfully no leaks after. Good price too.

### ⭐⭐⭐⭐⭐ Good flux paste
*by A***B on 17 July 2025*

Absolutely brilliant

### ⭐⭐⭐⭐ Excellent Soldering Paste - Applicator?
*by M***M on 2 September 2020*

First off the actual paste is probably the best soldering paste I've used for general purpose soldering. It seems to very quickly wick into any joint faster than most and really helps draw in the solder. What I didn't like was the brush applicator which, when pulled out of the tub is just a big gloopy mass because of course it's jammed right into the paste. This means small applications are impossible near enough. To be honest I'd rather there was no brush at all. However, because of the quality of the paste this is a five star product dropping a star for the awkward brush applicator.

## Frequently Bought Together

- LA-CO FLUX 125GRM BRUSH IN CAP
- Rothenberger 67022 Plumbers Soldering Mat up to 1000 Degrees C
- Neilsen CT2803 Wire Brush Pipe Cleaner - Heavy-Duty Steel Bristles for 1/2" and 3/4" Internal and External Pipes

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**Shop now:** [https://www.desertcart.ec/products/47876993-flux-125grm-brush-in-cap](https://www.desertcart.ec/products/47876993-flux-125grm-brush-in-cap)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-06*