Quote Originally Posted by hemmjo View Post
I always use 63/37 solder for electronics it is 63% tin and 37% lead. It has a melting point of 183°C (361f), slightly lower than the more common 60/40 blend. The primary advantage of this solder is not the lower melting point, but its eutectic property. Non-eutectic solders, like the 60/40 solder, have a semi-solid state between solid and liquid.
It is so hard to get leaded solder here that I am glad to get it with any composition.