Silver soldering.........

[Rich Berg]

Do the same as soldering copper pipe . The capillary action will suck the silver in to the joint and leave a small ring around the joint. Just don't use too much silver solder, it won't take very much.

I agree just be careful not to overheat the connection and wait for the flux to do its job, you will see the surface clean up from the action of the flux. I'm assuming that we are using high temp solder

 

[pontiac428]

What flux should be used with this. Harris brand 5515. Have a 2 pound roll.

That's good stuff for tight fits, just what I would want for making a water block heat exchanger or the like.