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Silver Solder Copper to Copper



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.


aluminum welding and metal repair

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.


metal fabrication and repair with muggyweld

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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Copper has a variety of uses, and can be found in water piping in nearly every building or home in North America. Copper is also used in A/C units, refrigeration, and is a good conductor of electricity.



First, pre-clean the area you will be soldering with a wire brush.



Apply the SSQ-6 silver solder paste by pushing the plunger on the syringe



Broadly heat the area with a propane torch, then flow out the solder by moving your torch from side to side.



Clean the finished bond with water and a wire brush. The end result is a beautiful finish that is as strong as an arc weld (over 80,000 psi)



Although we did not add SSQ-6 to the backside of the copper, it flowed perfectly, front to back, with no pinholes or porosity.



SSQ-6 Silver Solder Products

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SSQ-6 1 oz Syringe
SSQ-6 1 oz Syringe

FEATURES: Tensile strength up to 85,000 psi, almost 18x the strength of regular solders Hand..