Maybe it was locally concentrated ferric chloride from corrosion of the steel in salt, but there is insufficient galvanic difference between steel and aluminum to cause galvanic corrosion. Leslie, this is my profession and what pays for my bicycles.
On Friday, May 1, 2015 at 9:21:17 AM UTC-5, Leslie wrote: > > On Wednesday, April 29, 2015 at 10:46:21 AM UTC-4, Ron Mc wrote: >> >> again, the galvanic difference between aluminum and steel is insufficient >> to promote galvanic corrosion - the occurrence is a bike shop myth. You >> don't need a barrier between the two metals, but a barrier between the >> metal surface and condensation. >> > > Stop! That's not right.... I've been through PLENTY of old Land > Rovers, where the aluminum is eaten away where it contacts the steel.... > it is not a myth, it's real chemistry at work. > > Now, I will concede, it may not a big deal for bicycles; most of mine I > keep in good enough shape, that I've not had any problems w/ such, but, the > science is legit that galvanic corrosion between aluminum and steel does > occur.... > > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
