---
product_id: 648528943
title: "FA241 High Active Soldering Flux for Electronics PCBs and Plumbing. Paste Gel ROM1 in 10g Syringe for Repair and Soldering Printed Circuit Boards and Copper Pipes."
brand: "diamond flux"
price: "S$47"
currency: SGD
in_stock: true
reviews_count: 3
category: "Diamond Flux"
url: https://www.desertcart.sg/products/648528943-fa241-high-active-soldering-flux-for-electronics-pcbs-and-plumbing
store_origin: SG
region: Singapore
---

# High activity for oxidized surfaces Precision syringe delivery RoHS & J-STD-004B compliant FA241 High Active Soldering Flux for Electronics PCBs and Plumbing. Paste Gel ROM1 in 10g Syringe for Repair and Soldering Printed Circuit Boards and Copper Pipes.

**Brand:** diamond flux
**Price:** S$47
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your solder game with Diamond Flux FA241 — where precision meets power!

## Quick Answers

- **What is this?** FA241 High Active Soldering Flux for Electronics PCBs and Plumbing. Paste Gel ROM1 in 10g Syringe for Repair and Soldering Printed Circuit Boards and Copper Pipes. by diamond flux
- **How much does it cost?** S$47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/648528943-fa241-high-active-soldering-flux-for-electronics-pcbs-and-plumbing)

## Best For

- diamond flux enthusiasts

## Why This Product

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

## Key Features

- • **Easy Post-Solder Cleanup:** Leaves residues that clean easily with PCB cleaner, maintaining circuit integrity.
- • **Trusted Compliance & Safety:** Meets RoHS and J-STD-004B standards ensuring professional-grade reliability.
- • **Precision Application Syringe:** 10g gel paste in a syringe with needle for controlled, mess-free soldering.
- • **Unmatched Oxide-Busting Power:** Penetrates and cleans oxidized PCB and copper pipe surfaces for flawless solder joints.
- • **Versatile Electronics & Plumbing Use:** Perfect for SMD, DIP, FPGA, BGA repairs and copper pipe plumbing soldering.

## Overview

Diamond Flux FA241 is a high-activity soldering flux gel in a 10g syringe designed for professional repair and soldering of oxidized printed circuit boards and copper pipes. Compatible with lead and lead-free alloys, it excels in microcircuit and plumbing applications, conforms to RoHS and J-STD-004B standards, and requires thorough cleaning post-soldering to ensure optimal electrical performance.

## Description

Diamond Flux FA241 soldering flux in a syringe is highly active and will help solder oxidized surfaces of printed circuit boards. Provides good metal adhesion - penetration of tin or lead-free solder alloy into the surface layer of copper or other immersion coating of electronic printed circuit boards. Suitable for repairing any electronics, including phones, laptops and other household appliances. After soldering, you need to thoroughly clean the soldering flux using a PCB cleaner. Suitable for soldering copper pipes in plumbing.

Review: The initial tube of 241 I got it works well but the viscosity is so high I was struggling to get flux out of the syringe. It needs a lot of umph to push it out. It is a very high quality flux made here in the USA 🇺🇸 based out of Florida. The owner Dimitri is a great man. I reached out in one of his videos on YouTube in regards to the flux being very thick, he asked me to send him a email. Less than a week later today I received replacement of the updated fix! You cannot beat his customer service, he is a man of his word! Over all the flux is easy to clean using a high percentage ipa 90% or better. Easy to use and great value for the price. I didn't find this flux to be terribly sticky like others out there. I'm glad I decided to buy Diamond 241. Great ownership and excellent support!
Review: Works fine but the fumes are really really bad.

## Features

- Diamond flux FA241. Soldering Flux is Suitable for the Soldering of Lead and Lead-Free Alloys. High Activity Soldering Flux for Oxidized Surfaces, Components and PCBs. For Repairing and Soldering Electronic Components.
- For Soldering and Repairing FPGA, BGA, QFN, QFP, SOIC pads, and other Cases of Microcircuits. For SMD and DIP Components.
- Effectively Copes with the Oxide Layer on Printed Circuit Board Conductors During Repair, Tinning and Soldering of PCBs after exposure to moisture and Water.
- High Activity Soldering Flux is Suitable for Soldering Copper Pipes in Plumbing. It Effectively Wets and Breaks Down Oxide Films on Copper Pipes and Allows the Solder Alloy to Flow Between Two Pipes Surfaces.
- Solder Flux Residues May Remain Active After Soldering and Must Be Effectively Cleaned with PCB Cleaner from Printed Circuit Board. Residues Can Conduct Electricity. Conforms to Standard J-STD-004B and ROHS.
- Class ROM1 Necessary for Clean from Electronic PCB after Soldering. Air Exhaust is required for soldering electronics. Not for Stranded Wires.
- The Shelf Life is 2 Years from the Date of Manufacture Indicated on the Syringe Sticker, including the 2024 batches.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D786Z3K4 |
| ASIN  | B0D786Z3K4 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #149,748 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #302 in Solder, Solder Fluxes & Pastes |
| Color | Amber |
| Customer Reviews | 4.1 4.1 out of 5 stars (3) |
| Customer reviews | 4.1 4.1 out of 5 stars (3) |
| Date First Available | 30 June 2024 |
| Date First Available  | 30 June 2024 |
| Included components | Needle, Plunger, Instruction |
| Item Package Quantity | 1 |
| Item Weight | 10 g |
| Item model number | FA241 |
| Item model number  | FA241 |
| Manufacturer | Diamond Flux |
| Manufacturer  | Diamond Flux |
| Material | Plastic |
| Package Dimensions | 18.9 x 3.61 x 3.61 cm; 10 g |
| Package Dimensions  | 18.9 x 3.61 x 3.61 cm; 10 g |
| Part number | FA241 |
| Power source type | crank |

## Images

![FA241 High Active Soldering Flux for Electronics PCBs and Plumbing. Paste Gel ROM1 in 10g Syringe for Repair and Soldering Printed Circuit Boards and Copper Pipes. - Image 1](https://m.media-amazon.com/images/I/71b2GPaAmnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***B on 9 May 2025*

The initial tube of 241 I got it works well but the viscosity is so high I was struggling to get flux out of the syringe. It needs a lot of umph to push it out. It is a very high quality flux made here in the USA 🇺🇸 based out of Florida. The owner Dimitri is a great man. I reached out in one of his videos on YouTube in regards to the flux being very thick, he asked me to send him a email. Less than a week later today I received replacement of the updated fix! You cannot beat his customer service, he is a man of his word! Over all the flux is easy to clean using a high percentage ipa 90% or better. Easy to use and great value for the price. I didn't find this flux to be terribly sticky like others out there. I'm glad I decided to buy Diamond 241. Great ownership and excellent support!

### ⭐⭐⭐ Review
*by C***L on 25 September 2025*

Works fine but the fumes are really really bad.

### ⭐⭐⭐⭐⭐ Review
*by V***B on 22 November 2024*

flux worked very well when used for soldering on PCBs with slight corrosion

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-10*