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SSQ-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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  • Melts at 1050° F
  • Tensile strength up to 85,000 PSI, almost 18x the strength of regular solders
  • Handy silver powdered solder cream that allows for one handed soldering and preplacement of alloy
  • Syringe dispenser eliminates waste—as little as a pinhead dot can be dispensed
  • Cadmium and lead free~ No harmful contaminates
  • Easily washed off flux residues leave no corrosives—even on electrical applications
  • Large oversize 1 oz Syringe dispenser facilitates one-handed, low pressure applications without seepage




  • This alloy works on all common metals except aluminum
  • Excellent for plumbing, electrical, automotive, jewelry, electronic, and general household applications
Compare SSQ-6 SSF6
Strength Over 85,000 PSI Over 70,000 PSI
Form 1 oz. tube 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


Using SSQ6 Silver Solder Paste


For best results, clean your work area and make sure that everything's in order before you begin soldering. Next, clamp the silver parts that require soldering together into a vise. Make sure to position the ends so there are no gaps. Silver powdered solder can't fill in gaps but will flow around the joint to fuse the parts, so make sure that you get a good fit for optimum results.


Next, apply SSQ6 to the joint. The amount of solder used should only be equal to the thickness of the wire or sheet you're working on. Then, light the torch and position the flame so that both sides are heated equally.


In some instances where the melting point is too low for the torch temperature, solder can flow away from the joint before the parts you're working on can fuse. Thankfully, SSQ6 has a melting point of 1050º and has a tensile strength up to 85,000 PSI, which is almost 18 times the strength of regular solders.


For more information on SSQ6 and to watch instructional videos, click the links below:


SSQ-6 Silver Solder Videos

Copper Nickel or Cupre Nickel is Silver Soldered using SSQ-6

We are solver brazing cupre nickel together using SSQ-6 silver solder from muggyweld.com. A propane torch was used on the two pieces of copper nickel, one tube was flared so the other could be inserted for tight fit.

Brass Nut Soldered to a Brass Washer Using SSQ-6

Muggy Weld SSQ-6 is simple to use on brass, you just squeeze out the amount needed on the brass before you heat the part with your choice of torch.

Copper Plates Silver Brazed with SSQ-6 Silver Solder Paste

We are using SSQ-6 to join two copper plates. Just push the plunger on the syringe and add the amount need for the solder joint. Copper has a variety of uses, it can be found in water piping in every building or home in North America. Copper is also used in A/C units, refrigeration, and is a good conductor of electricity.

Silver Solder Copper to Steel using SSQ-6 Syringe

A 1/8" steel plate is soldered to a copper end cap using Muggy Weld SSQ-6 56% silver solder paste.

Brass Repair

Two pieces of brass are brazed with SSQ-6 and a propane torch.

Silver Solder Paste: How to Silver Solder

This deep sea pole has a broken eyelet. We make the repair with SSQ-6 and a propane torch, as well as Cool Blue Heat Paste.

How to Repair Steel with Silver Solder

SSQ-6 is the perfect solution for jobs like this--parts are balancing, and if a rod were used they could easily be knocked over but the silver solder almost glues them together and acts like a jig when heated.

Joining a Stainless Plate to Copper Tubing with Silver Solder

Using SSQ-6 silver solder paste, Mike silver solders a stainless steel plate to a piece of copper tubing.

Silver Brazing a Brass Nut to a Stainless Steel Bolt with SSQ-6

A stainless steel threaded bolt is soldered to a brass nut using SSQ-6 silver solder paste in syringe form.