Cardas Soldering Wire Quad Eutectic Silver Solder with rosin flux 1/4 lbs (113g) roll

One of the best solders to use as it has a low melting point

I have probably soldered close to 1,000,000 electronic circuits and tens of thousands of custom fabricated hobby craft joints in my life. The reliable old 60-40 solder served me well on electronic circuits and then the stronger silver-content solder worked well for craft work. But the silver solder I used for craft work was very high heat and if I tried using it on electronic circuits it more often than not destroyed the delicate copper traces on expensive circuit boards. The Cardas product is a quality silver-based solder that melts at far more reasonable - although still quite high - temperature and provides stronger and IMHO better sounding connection than 60-40 solder does. Simply re-sweating any existing soldered electronic joint may yield audible improvements providing that the components being soldered can tolerate this higher heat [i.e., used with caution on temperature-sensitive and surface-mount devices]. Will this ALWAYS make things sound better? Probably not. But heres the way I look at it. Eliminating problems in the long audio chain between the signal source and your ears is a tedious process. If you have a particular piece of gear already in pieces on your bench, why not eliminate a potentially weak-ink in the audio chain by using better solder? The cost is small and the return could be large. If you always do what youve done, you will always get what you got. If you want something different, then you must try something new. Give this a try; Im pretty sure that it will surprise you.

Too much flux and it stinks.

Despite some adverse reviews this product has received, I gave it a try. It really is the best industrial solder I have ever used. It creates very clean, strong and shiny soldering points, perfect for audio equipment construction. After measuring mainly resistance results on the conductors, one can see the circuits are never adversely affected. Very easy to use, follows the flux path exactly and leaves no porosity in the bonding points. Excellent!!

I wanted to try an actual silver solder but have always heard they were difficult to work with. Not so for this one, although I am using an X-Tronic work station, not a pen type iron, so at 75 watts it has headroom. I cant tell the difference between this and the Wonder Signature I normally use.

Nice clean burning solder

great

This has to be the best solder Ive used hands down. Im used to lead free solders and the high temps needed, and while lead free has its place, when it comes to component soldering on a pcb, this stuff is the best.

This is top notch. You may find better and I would ask that you post your response if you do.

The best solder available.