Soldering of aluminum with normal solder for electronic devices

Soldering of aluminum with soft solder for electronic components

Aluminum can be soldered with normal tin/lead solder for electronics provided the aluminum surface is sanded with a glass fiber brush, a stainless steel brush or sandpaper in order to remove the oxide layer.

The point is, that it is almost impossible to solder aluminum with normal tin/lead solder because the brushed and cleaned surface oxidizes as soon it comes in contact with the air. Thats why you have to brush the surface under heatresistant motor oil. The oil protects the brushed surface from the oxygen in the air.

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