---
product_id: 5403296
title: "Forney 37025 Aluminum Welding Flux, 4-Ounce"
brand: "forney"
price: "€ 37.86"
currency: EUR
in_stock: true
url: https://www.desertcart.com.cy/products/5403296-forney-37025-aluminum-welding-flux-4-ounce
store_origin: CY
region: Cyprus
---

# Prevents oxide formation Cleans molten rod effectively Prevents weld collapses Forney 37025 Aluminum Welding Flux, 4-Ounce

**Brand:** forney
**Price:** € 37.86
**Availability:** ✅ In Stock

## Summary

> ⚡ Weld Like a Pro, Shine Like a Boss!

## Quick Answers

- **What is this?** Forney 37025 Aluminum Welding Flux, 4-Ounce by forney
- **How much does it cost?** € 37.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/5403296-forney-37025-aluminum-welding-flux-4-ounce)

## Best For

- forney enthusiasts

## Why This Product

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

## Key Features

- • **Collapse-Proof Confidence:** Ensures your welds hold strong without structural failures
- • **Molten Rod’s Best Friend:** Cleans the rod for flawless fusion and strength
- • **Oxide-Free Welding Every Time:** Keeps your welds pristine by preventing oxide buildup
- • **Tailored for Bare Aluminum Rods:** Optimized formula for superior aluminum welding results
- • **Trusted Quality, Proven Performance:** Backed by Forney’s 90-day warranty for peace of mind

## Overview

The Forney 37025 Aluminum Welding Flux is a premium 4-ounce flux designed to prevent oxide formation and weld collapses during aluminum welding. It acts as an excellent cleaning agent for molten rods, ensuring strong, clean welds. Compatible with bare aluminum rods, this hand-powered flux comes with a 90-day warranty, making it a reliable choice for professionals seeking flawless aluminum welds.

## Description

Forney 37025 Aluminum Welding Flux, 4-Ounce

## Features

- Helps keep oxides from forming during welding
- Great cleaning agent for the molten rod
- Helps prevent collapses
- For use with bare aluminum rod
- Excellent quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Forney |
| Part Number | 37025 |
| Item Weight | 0.01 ounces |
| Product Dimensions | 2.75 x 2.75 x 2.88 inches |
| Item model number | 37025 |
| Is Discontinued By Manufacturer | No |
| Color | White |
| Material | aluminum |
| Power Source | Hand Powered |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Measurement System | standard |
| Included Components | Aluminum Welding Flux |
| Batteries Required? | No |
| Warranty Description | 90 day warranty against manufacturer defects |

## Images

![Forney 37025 Aluminum Welding Flux, 4-Ounce - Image 1](https://m.media-amazon.com/images/I/71g10ymNuWL.jpg)

## Questions & Answers

**Q: Can I use this as a flux for molten aluminum? Does it work better than mortons lite salt?**
A: Get a proper casting flux.  "lite salt", washing soda, and other grocery-store nonsense do not and cannot function as fluxes for aluminum.  They can neither degas the melt or separate metal from the dross.  The fact that these salts often carry a large amount of absorbed water into the melt means they will typically cause a dramatic increase in absorbed gas -- the exact opposite of what's desired.  Just like borax and washing soda, sodium chloride and potassium chloride individually are incapable of melting anywhere near the process temperature.  The binary eutectic of NaCl and KCl is close to 660C, but dry mixing of granulated salt does not achieve this.  Unless you are willing to painstakingly dry your salt, weigh it accurately, melt it down at >800C (with painfully slow addition of CaF2), cast it and grind it back into powder, you're not making flux at home.   I've done it.  It's not a simple, quick, safe, or inexpensive task. 

Judging by every single youtube video on the subject, I think most people don't really understand what to expect of a dross cleaning flux.  With an actual flux, the foamy metallic dross will separate to a loose grey ashy material, and your metal loss rate is minimized to nearly zero.  I even went and recovered a bunch of ingots out of my old dross bucket (not that that's economical).  The flux sold by BCS will achieve this with relatively little cost ($25 for a pint).

**Q: How many ounces of flux do I get?**
A: The Forney aluminum welding flux (37025) has 4 ounces of flux. Thank you for your question!

**Q: I have purchased 2x and recurved brazing flux not welding flux. Anyone have luck?**
A: Are you wanting to braze or weld? The Forney Aluminum Welding Flux is not good for aluminum torch welding in my experience. Try Amco 22 by Superior Flux or Anti-borax no.8 for aluminum torch welding. I have not tried their brazing flux.

**Q: What is the active temperature of the flux and can it be used for brazing?**
A: Yes I have used these to braze aluminum with Bernzomatic AL3 brazing rods.  Worked great and made the braze flow like lead solder and looked cleaner.

## Frequently Bought Together

- Forney 37025 Aluminum Welding Flux, 4-Ounce
- Blue Demon BDTP-125-01T Triple Play Low Temp Aluminum-Zinc Brazing Rod 1/8" x 18" 1 Lb Tube,
- Bernzomatic AL3 Aluminum Brazing/Welding Rods with 12-Inch Rods of Working Temperature 720-750 Degrees, 2-Piece

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-15*