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SSF-6 Silver Solder



These pics come from a new aerospace test facility that they are constructing at the University of Notre Dame. The SSF-6 is working great.


welding stainless steel

I am attempting to make all of these fittings air tight as they are used for pressure measurements. We can¹t have any leaks. I had very little warpage of my base metal and I think this is really going to work out very well.


silver solder high strength metal repair

Thank you,


David Hipskind
Turbomachinery Technician
The University of Notre Dame
Institute for Flow Physics and Control (FLOWPAC)
The Hessert Laboratory for Aerospace Research


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Applications that require strength and a perfect finish would do well with the SSF-6 silver solder from Muggy Weld. Unlike fluxless rods, our 56% silver soldering rod has the highest silver content on the market, has high thin flow, flows easily, and can be used with a variety of metals at over 70,000 psi.


Before SSF-6, soldering was considered a tricky and challenging undertaking. Several problems can arise during the process; the solder can melt to a ball or refuse to flow, or in some instances, joints fail to completely fill in with the solder or the metal melts before the solder does.


These problems can all be prevented using the SSF-6 soldering rod. It is the only flux-coated silver solder that's strong enough to clean oxidized stainless steel, therefore eliminating the need for washing or cleaning the metal before soldering. Also, SSF-6 wets even burned stainless and 1" of material flows 18". It can be used on cast iron, as well as for bonding stainless steel, brass, copper, bronze, mild steel, tool steel, carbon steel, and chrome-moly individually or with other metals. To ensure safe use for medical and pharmaceutical applications, our product is also cadmium-free.


TORCH SETTING: Slightly Carburizing
MELTING RANGE: 1140°F to 1200° F


Strength Over 85,000 PSI Over 70,000 PSI
Form 1 oz Syringe 18 inch Rod
Flux Mixed in Flux coated
Melt Temp 1050°F 1150°F
Ease of Use Very easy Easy
Works on Stainless, Brass, Steel, Copper, Bronze, Cast Iron       Stainless, Brass, Steel, Copper, Bronze, Cast Iron
Heat Source Any torch Any torch
Shelf Life 9 months Years if Kept Dry in Tube
Clean Up Water and wire brush Water and wire brush
Special Care Refrigerate None
Position All position All position
Application Apply cold then heat Apply when metal is dull red


For more information on SSF-6 Silver Solder, and to watch instructional videos, click the links below :

SSF-6 Silver Solder Videos

Cast Iron Carburetor Repair with Silver Solder

Cast Iron Carburetor Repair with Silver SolderNew!

SSF-6 Silver Solder is used to repair a cast iron body carburetor.

Brazing Mild Steel

Square steel is joined to rectangular steel with SSF-6 and an oxyacetylene torch. SSF-6 provides a perfect color match and better finish than MIG welding, with a bond of over 70,000 PSI.

Silver Soldering a Steel Pipe 

At 56% silver, SSF-6 Silver Solder is ideal for brazing all types of steel. This video gives step by step instructions for repairing steel pipe with an oxy-acetylene torch.

Silver Soldering an Antique Shotgun  

Rich Shoop (The Gun Slinger, Mt. Ayr, Indiana) was hired to restore this antique Ithaca, and discovered a missing piece on the barrel.

Silver Soldering a Cast Iron Flange to Aluminized Steel Tubing for RX 7

Josh Colson from Auburn Muffler and Auto Repair in Auburn, Washington, is using SSF-6 Silver Solder by MuggyWeld.com, to braze a cast iron flange to aluminized steel tubing for better air flow.

How to Braze or Solder Copper to Stainless Steel Tubing with a Hand Held Torch

Brazing stainless steel tubing to copper tubing with SSF-6 silver solder using a hand held propane torch. As you can see, the silver solder flows very well and finishes with no pinholes or porosity--with a strength of over 70,000 psi.

Braze or Solder Steel to Stainless with High Strength Silver Solder

SSF-6 brazes a stainless steel tube to a steel plate at over 70,000 PSI with a propane torch.

Stainless Steel Brazing with 56% Silver Solder

Two pieces of stainless steel are silver soldered with a propane torch at 1150 degrees.

How to braze or silver solder steel to steel at high strength with a propane torch

Joining square steel tubing to mild flat bar steel with SSF-6 Silver Solder. Straight propane is used for this braze, as SSF-6 is lower temperature than most high content silver solders. 

How to Silver Braze Steel to Brass with high content silver solder

Braze steel to brass tubing with Muggy Weld SSF-6 Silver Solder and a propane torch.  Step by step instructions for SSF-6, as well as tips and troubleshooting.

How to Silver Solder Brass Plates Together with a Brazing Rod

Brazing two brass plates together using SSF-6 silver solder and a propane torch. You can use mapp gass or oxygen acetylene as well.

Silver Solder on Steel Brass Copper Stainless Steel Using SSF-6 Silver Soldering Rod

SSF-6 Silver Solder brazes stainless steel to copper, brass, or steel... in any combination, and can be successfully applied using a propane torch, oxyacetylene, MAPP gas or a natural gas torch.

How to Braze or Solder Brass to Stainless Tubing Using a Propane Torch

How to braze brass tubing to stainless steel tubing with a high strength silver solder at 1150 degrees and only using a propane torch.

Silver Soldering Brass Plate to Stainless Steel Plate with SSF-6 Flux Coated Brazing Rod

Joining a brass plate to a stainless steel plate at 1150 degrees with no warpage of the parent metal. A propane torch is used to heat both the brass and stainless evenly before adding the flux.

Stainless Plates Silver Soldered with Muggyweld SSF-6 Brazing Rod

We are using SSF-6 Silver Solder to join two stainless steel plates together at 1150 degrees. The braze was made with a very small amount of silver solder, it doesn't need much as the alloy is over 70,000 psi. A propane torch was the gas used in this video and the solder is flux coated.

Cast Iron Welding: Cast Iron Exhaust Manifold Repair

A cast iron exhaust manifold is brazed with SSF-6 Silver Solder. We cleaned a 3 to 4 inch cut, then silver soldered the cut with an oxyacetylene torch.

Steel Soldering: Bobcat Oilcan Repair

This steel oil pan is repaired with our SSF-6 silver solder using a propane torch.

Steel Welding: Hydraulic Hose Repair

John at MHSS (a hydraulic hose repair shop) saves a $300 hydraulic hose using our SSF-6 silver solder.

Stainless Steel Welding

We use SSF-6 to solder stainless to stainless with an oxyacetylene torch. After finishing, clean up the flux with water and a wire brush.

Silver Soldering Brass

This clip shows how to join 2 pieces of brass using our SSF-6 silver solder.