Originally Posted by igor0203
ROBSCIX, did you try Mundorf Supreme? I recieved 3m Mundorf Silver/Gold and I have mixed impressions about it.
It doesn't flow very easily, at least not for me when I was soldering 2 sided PCB. It ran to other side only when I had clean tip and when I melted it directly on hole. If I had solder on tip, then it stayed just on one side.
i use mundorf supreme, the one with 9.5% silver, but its only good for point to point soldering esp in tube amps etc. it only flows well when you have the iron heated to 300+ degs, if you dont have a temperature controllable iron, you can consider irons above 40 watts.
you risk overheating components if you're not quick enough. it solidifies in a quick instant due to its high melting point, so i usually dab the solder on and blow at it immediately after application.
for PCB based or solid state electronics, i would still suggest something like tri eutectic w/o lead or with if you like. this solder will be too hard to work with, esp with the need of a fine tipped iron on PCBs, you wont get good flow, and probably lots of bad joints