International Customers the best deal is the 6oz. 170.1 grams package with about $14.00 for shipping because I can keep the total weight under 8oz/226.8grams.  Once we go over 8oz. postage is over $25.00.  So the value is best with a 6oz/170.1grams package of Solar Flux.

This package contains enough Solar Flux to cover approximately 240 lineal ft.

On sale 6 ounces Solar Flux Type B for $54.07
With fast and free domestic shipping!

For most job shop and maintenance welders who do a variety of welding on different types of materials on a daily basis and do not necessarily work on stainless steel all the time, I can tell you one thing from experience that a one pound can will last for a very long time.  That is why I am offering you an opportunity to purchase this same great product in 2oz., 4oz., 6oz., and 8oz. sealed Mylar standup pouch, and this will provide the opportunity for you to purchase only what you need, and use the savings on other necessary welding paraphernalia.

We're all looking for ways to save money in our welding businesses, and one of the best ways is to cut costs of consumables!  I have been in the welding business over 40 years and have welded many different types of metals and discovered Solar Flux type B in 1983.  As a result I began to take on stainless steel welding jobs that I otherwise could not have successfully repaired.  The Solar Flux more than pays for itself on each and every job that normally requires back purging, and protection for the backside of the weld.  Good Welding.

On sale 6 ounces Solar Flux Type B for $54.07
With fast and free domestic shipping!

Solar Flux Type B is for Stainless Steel and High Chromium Steel.
Properly mixed and applied, 2oz. should cover approximately 70 lineal feet.

This package contains enough Solar Flux to cover approximately 240 lineal ft. total.

As always your purchased item is carefully packaged and sealed for ultimate protection during shipment!  We usually ship the same day we receive your order.

I have been using this Welding Process on Stainless Steel Welding for over 30 yrs.
This is one of those trade secrets that will help you make better welds and increase your profits!

From experience as a specialty welder, I believe every welder who ever welds on Stainless Steel should have a bag of Solar Flux Type B in his or her toolbox!

The shielding gas or the flux in the electrode only protect the front of the weld.  In thin wall material, or when making the root pass in thicker material, you must either use Solar Flux or Back Purge with an inert gas to drive out the oxygen, float out unwanted oxides, and dissipate the heat on the back of the weld.  If not, you get a sugary porous weld and burn through.  The front of the weld will look good, but you'll see the difference when you look at the back side.

Solar Flux has been producing X-Ray quality welds in Stainless Steel for over 70 years.  It is often preferred over argon back purging gas for its ease of use, speed, simplicity and low  cost.  Other variables being the same, either Solar Flux or backing gas will produce the same quality weld.

Solar Flux is a very fine powder which when mixed with alcohol, or the preferred pure methanol, (methyl alcohol): Remove a small amount and mix into a thick paste just before use.  It can be used with any gas or arc welding process, ie; TIG, MIG, SMAW.  It comes in two types:  Type B for Stainless Steel and/or High Chromium Steel; and Type I for high (over 25%) Nickel Alloy.  Welding is done using the same procedure that would be used with Argon Backing Gas.

When the green flag drops at the Indy 500 Solar Flux is in the Welding Garage--Just in case any Stainless Steel components, especially exhaust manifolds, need welding.

Solar Flux was developed prior to World War II by the Solar Aircraft Company, San Diego, California for use in the manufacturing of Stainless Steel exhaust manifolds for U.S. Navy aircraft engines and was a closely guarded military secret.  After the war, patents were obtained and Solar Flux was marketed internationally.

Solar Flux is inert, non-flammable, and non-explosive and can be shipped in any quantity by any means of transportation.

AWS/ANSI code:  See Structural Welding Code--Stainless Steel.  AWS D1.6:1999 Backing required for welder performance qualification (WPQ) and flux backing acceptable, Sections 3.29 and 4.8.7.

Type B conforms to Mil-F-7516B (class 2 & 4) for welding Stainless Steel by any Gas or Arc Method.

The shelf life is infinite as long as it hasn't been mixed with fluid and remains in a closed container.

A little Solar Flux goes a long way:  2 ounces properly mixed and applied will cover approximately 80 lineal feet.

This package contains enough Solar Flux to cover approximately 240 lineal ft.

Common applications:  Pipe and Tube Welding, Maintenance Welding, In Field Welding, One of a kind welds, Unusual shapes and configurations, large diameter pipes and ducts, various aircraft and jet engine repairs, and many more.

Technical information, Material Safety Data Sheet, & Specifications are enclosed with each order.

USPS First Class Mail Package is the primary shipping method for this listing.

If you have any questions or concerns please feel free to send us.

Professional Customer Service

Our goal is to make sure we support you every step of the way. If there is an issue, our customer service staff are ready to help you over email or a phone call. We value your business!


We ship worldwide.

International Customers- Please be aware that USPS does not offer tracking for many countries but not all.  For countries where tracking information is not updated, such as Russia, Finland, Ireland, Japan, Greece, and others, the package will show as being sent but there will not be online information to track its progress.  Delivery time is typically 1-2 weeks but we ask all international customers to allow 30-35 days for delivery as most delays work themselves out in that time frame.  International shipping will be USPS First Class Mail International.

Please note we are not responsible for customs and duty fees. Fees may be collected at delivery by your local carrier depending on the policies of every individual country these fees are determined by your Country and we are unable to provide this information.

If you are interested in bulk discounts please feel free to email me for details.

Thanks for viewing and your interest and Good Welding too you.