Forney 37025 Aluminum Welding Flux, 4-Ounce

Forney 37025 Aluminum Welding Flux, 4-Ounce

Q: Can I use this as a flux for molten aluminum? Does it work better than mortons lite salt?

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?

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?

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?

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.

4.3/5

Product ID: 5403296

Secure Transaction

📏2.75 x 2.75 x 2.88 in

🔧90-day warranty

⚙️0.01 oz weight

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

Description

🔥 Weld with Confidence! 🔥

WELD LIKE A PRO - Keep oxides at bay for flawless results.
STURDY RELIABLE - Prevents collapses during welding.
DESIGNED FOR ALUMINUM - Perfectly pairs with bare aluminum rods.
QUALITY YOU CAN TRUST - Manufactured by Forney, a leader in welding.
ULTIMATE CLEANING POWER - Enhances molten rod performance.

Forney 37025 Aluminum Welding Flux is a premium 4-ounce cleaning agent designed to prevent oxide formation during welding. Ideal for use with bare aluminum rods, this flux ensures strong, reliable welds while enhancing the performance of your molten rod. With a compact size and a 90-day warranty against manufacturer defects, it's the perfect addition to any welder's toolkit.

Specifications

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
Material	aluminum
Power Source	Hand Powered
Item Package Quantity	1
Measurement System	standard
Included Components	Aluminum Welding Flux
Batteries Required?	No
Warranty Description	90 day warranty against manufacturer defects

Have a Question? See What Others Asked

Can I use this as a flux for molten aluminum? Does it work better than mortons lite salt?

How many ounces of flux do I get?

I have purchased 2x and recurved brazing flux not welding flux. Anyone have luck?

What is the active temperature of the flux and can it be used for brazing?

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving over 300 million shoppers across more than 200 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

¥6404

Duties & taxes incl.

Japanstore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews