[Jrainman]

I use silica bronze wire , it does take a bit to master, this type of mig wire you are not looking for a traditional steel wire bead when using this wire , If you do this, most likly you are compromising the silica bronze with to much heat, the main thing is to make sure the back of the panel has complete penatration and being such a low heat soft metal you need to have a small amount of gap when welding two sections together so the flow is even on both sides .

it has its advantages and dis advantages but when used in the right conditions it can be a excellent choice low heat , very easy to shape or grind ,and does not rust are some of its good qualitys. Also the choice in Mig machine plays a part in how good silica bronze wire reacts to your repair.