---
product_id: 92846047
title: "1544 Liquid Soldering Flux, Activated Rosin, 2oz Bottle"
brand: "kester"
price: "€ 34.86"
currency: EUR
in_stock: true
reviews_count: 8
category: "Kester"
url: https://www.desertcart.hr/products/92846047-1544-liquid-soldering-flux-activated-rosin-2oz-bottle
store_origin: HR
region: Croatia
---

# Activated Rosin Formula 2oz Precision Dispensing Bottle Lead-Free & RoHS Compliant 1544 Liquid Soldering Flux, Activated Rosin, 2oz Bottle

**Brand:** kester
**Price:** € 34.86
**Availability:** ✅ In Stock

## Summary

> 🛠️ Flux your way to flawless solder joints with the pro’s secret weapon!

## Quick Answers

- **What is this?** 1544 Liquid Soldering Flux, Activated Rosin, 2oz Bottle by kester
- **How much does it cost?** € 34.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/92846047-1544-liquid-soldering-flux-activated-rosin-2oz-bottle)

## Best For

- kester enthusiasts

## Why This Product

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

## Key Features

- • **Compact 2oz Bottle:** Perfectly sized for professional use without waste or bulk storage.
- • **Trusted Legacy Formula:** Core formula from the legendary Kester 44, now in a convenient dispenser.
- • **Universal Compatibility:** Works seamlessly with both lead and lead-free solders for versatile projects.
- • **Eco-Friendly & Compliant:** Lead-free and RoHS certified for safe, modern electronics assembly.
- • **Precision Activated Rosin:** Ensures superior solder flow and joint reliability every time.

## Overview

Kester 1544 Liquid Soldering Flux is a 2-ounce activated rosin formula flux, repackaged for precision dispensing. It is lead-free and RoHS compliant, compatible with both lead and lead-free solders, making it an essential, eco-conscious choice for professional and hobbyist soldering tasks.

## Description

Kester 1544 Liquid Flux Repackaged by CML Supply in this convenient dispensing bottle Lead Free - RoHS compliant. Compatible with Lead and Lead-Free Solders 2-ounce bottle Activated Rosin Formula

Review: Good product - Works well
Review: Wow, what a difference - With this being the same formular within the core of the legendary Kester 44 Solder, I'm not surprised it's the best supplemental flux for when you need extra flux. Needle cap is very good, but you have to wash it out each time (pine tar derivative, go figure). Price is high, but it's an honest hustle for those (me) not wanting to buy a large quantity.

## Features

- Kester 1544 Liquid Flux Repackaged by CML Supply in this convenient dispensing bottle
- Lead Free - RoHS compliant.
- Compatible with Lead and Lead-Free Solders
- 2-ounce bottle
- Activated Rosin Formula

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07K4F6SDM |
| Batteries Included? | No |
| Best Sellers Rank | #83,839 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #91 in Soldering Flux |
| Customer Reviews | 4.7 4.7 out of 5 stars (350) |
| Date First Available | November 2, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 3 ounces |
| Manufacturer | Kester |
| Material | Resin |
| Package Dimensions | 4 x 2 x 2 inches |

## Images

![1544 Liquid Soldering Flux, Activated Rosin, 2oz Bottle - Image 1](https://m.media-amazon.com/images/I/41ND7qqZT8L.jpg)

## Questions & Answers

**Q: ok I must be the dunmbest guy out here.  How do you install the tip?  There is a piece on top of the bottle?**
A: There is a small cone-shaped cap on the top of the black bottle cap. It unscrews. That is the fitting where the dispensing needle is screwed on! Please contact us at (859)317-2951 if you have questions.

**Q: is it noclean?**
A: No, this is NOT no clean. As an activated rosin, any residue must be removed. For a great no-clean flux we would suggest Kester 959T.

**Q: Suggestions on how to clean excess flux from components and board?**
A: We agree with others- Isopropyl alcohol works well, that's the base solvent in this flux. And please note- its VERY IMPORTANT to remove the residue, since this is an activated flux. If not there may be corrosion issues. If you are not familiar with the applications for this product, we would suggest an RMA flux such as Kester 186 or no-clean flux such as Kester 959T.

**Q: Is this ra flux?**
A: yep!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by B***K on November 4, 2025*

Works well

### ⭐⭐⭐⭐⭐ Wow, what a difference
*by M***L on March 19, 2026*

With this being the same formular within the core of the legendary Kester 44 Solder, I'm not surprised it's the best supplemental flux for when you need extra flux. Needle cap is very good, but you have to wash it out each time (pine tar derivative, go figure). Price is high, but it's an honest hustle for those (me) not wanting to buy a large quantity.

### ⭐⭐⭐⭐⭐ Love this liquid soldering flux
*by P***N on January 29, 2026*

This liquid soldering flux works very well. The needle dispenser really allows pinpoint application of the product. I'm a trolley modeler, build my overhead contact system from scratch. Accurate soldering is a must!

## Frequently Bought Together

- Kester 1544 Liquid Soldering Flux, Activated Rosin, 2oz Bottle
- Lesnow solder wick braid 10ft Length Desoldering Wick Braid Remover Tool Solder Sucker 1 piece No-Clean soldering Wick Wire Roll and Disassemble Electrical Components
- Thermaltronics TMT-TC-2 Tip Tinner (20g) in 0.8oz Container

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-06-24*