On Thursday, May 15, 2014 5:39:57 PM UTC-4, Wayne. B wrote:
On Thu, 15 May 2014 11:59:49 -0700 (PDT), wrote:


Although the exact protection mechanism may be debatable, it has been

well proven that anything that prevents direct contact between

dissimilar metals helps to prevent corrosion.

The exact protection mechanism is not debatable. This isn't politics. It's not working by preventing contact. You can't tighten a fastener adequately and think the two metals are not in contact. The silicon and in my case the thread sealer are keeping out the moisture. It takes three things to generate galvanic voltages, two dissimilar metals and an electrolyte.

Fortunately stainless steel is a poor electrode anyway. Because aluminum makes a crappy fastener.