How can you prevent Galvanic Corrosion? Answered
My parents bought a new green heater they've had repaired by 2 different guys in the past 2 months. The last one was a guy my brother knew; he said that it needed to be sanded, which I thought was a bit strange. It's beginning to act a bit funny again, kicking on, then going off. So I opened it up today, thinking that it was probably Galvanic corrosion from the way he talked. It seems as if a few companies are getting a bit careless in there designs. :-) So I opened it up and there was still corrosion laying on the bottom of the case from the first fix. He didn't even know what I was talking about.
I read the Wikipedia article: Galvanic Corrosion.
They mostly advise electroplating, which could get a bit labor intensive in this case. From what I understand, the idea is to separate the base metals, the anode and the cathode, from the electrolyte. In this case, it's the water vapor in the air. Wouldn't it just require some type of heat resistant coating to act as a barrier against water? Like some kind of spray on coating?