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  • LA-CO M-A Liquid Stainless Steel Flux Liquid
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by La-Co

LA-CO M-A Liquid Stainless Steel Flux Liquid

Available in multiple versions

9 customer reviews

Price: $9.60 - $82.68
Product Specifications
Brand Name La-Co
Manufacturer Series Number M-A
UNSPSC Code 23271800

Copper-based anti-seize and lubricating compound Read full product description


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1 gal B001HWE9CK
In Stock (10)
$82.68
1 qt B0085FMW1M
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$28.95
4 oz B001HWE9A2
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$9.60
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Product Features

  • Use with all types of soft solders
  • No neutralizing necessary on stainless steel
  • Will not cause progressive corrosion on stainless steel
  • Also may be used on copper, galvanized iron, chrome, steel, lead and brass

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0089806G8
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (9 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

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From the Manufacturer

LA-CO M-A Liquid Stainless Steel Flux Liquid

Product Descriptions

Developed for fast fluxing action on stainless steel, M-A Flux is excellent for projects on stainless gutters and roofs, among many other applications. It contains no zinc chloride and it will not cause progressive corrosion on stainless pipe. There is no neutralizing necessary when using it to solder stainless steel.

For Use On / With

All types of soft solders

Stainless steel

Chrome

Copper

Galvanized iron

Lead

Brass

Approvals/ Certifications

Fed. Spec. Commercial Item Description A-A-51145C, Type 11B

ASTM B32: Type 1S

Features / Benefits

  • Fast fluxing action for stainless steel and chrome
  • Contains no heavy metal chlorides, preventing potential flux damage
  • Do Not Use On Potable Water Tubing
  • Made in U.S.A.

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

3 of 3 people found the following review helpful By S. Feher on March 7, 2013
Size: 4 oz Verified Purchase
I have tried various fluxes, with mixed results. When I applied this flux to stainless steel that I was soldering it worked very well, and very little of the product needed to be used to function. There's not much to go on about, but it seems to me that so few things work as advertised that it is worth emphasizing that this really works well.
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3 of 3 people found the following review helpful By Josh Gelsthorpe on January 10, 2015
Verified Purchase
This flux can not be used on any item that will carry water for human consumption. This was not listed in the description but has a large warning labe on the back of the bottle. Also this item is not able to be returned due to its shipping hazards as a chemical. Very disappointed. The description needs to be updated.
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2 of 2 people found the following review helpful By Macon D. Bacon on June 10, 2014
Size: 4 oz Verified Purchase
I'm impressed. All my previous attempts to solder copper wires onto stainless steel electrodes had failed miserably. This stuff works like magic and totally changes the equation. Add one drop, apply heat, as soon as it starts to boil, apply solder. The solder (I'm using standard SnPb electrical solder) instantly wets to the stainless steel (I'm using 316 alloy) and makes a nice bond onto whatever stainless section that was covered in the flux droplet.

Just make sure not to overheat the work piece before wetting the solder to the stainless steel. If you aren't careful the stuff does go from boiling to charred very quickly, losing all of its fluxing properties (if this happens, no big deal, just clean things up and try again).
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Size: 4 oz Verified Purchase
From my previous failed attempts using standard flux and/or trying to sand the surface first, I thought soldering stainless steel was just always going to be a difficult process. I got some of the this dripped onto my parts and made some of the best solder joints I've ever made- seemed to stick easier then it does to copper PCB pads.

Definite must have if you're trying to solder tricky metals.
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1 of 1 people found the following review helpful By Mr. J on November 19, 2014
Size: 4 oz Verified Purchase
Good stuff. Used on stainless. Worked flawlessly.
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