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From: Philip (no email)
Date: Sun Aug 06 2006 - 17:32:48 EDT
Try coating the SS pop rivet with Lanacaote before installation.. When I
built Kuan Yin I used anhydrous lanolin on all the SS fastenings where
they went into or through aluminium. 12 years and lots of salt water later,
no corrosion.
Philip
At 04:34 PM 8/6/2006, Arild Jensen wrote:
> > -----Original Message-----
> > From: Peter Gelinas
> >
> > Here I go showing my ignorance again.
> > Why SS? Assuming the boom is aluminum, won't SS rivets will cause
> > galvanic corrosion? I thought that Monel was the rivet of choice. That and
> > putting a thin sheet of plastic between the boom and the object being
>riveted.
> > Peter
>
>
>Whne fastening SS or aluminum plates, tangs, and parts to the aluminum mast
>SS rivets make more sense.
>The mass of the aluminum mast is far greater than the mass of rivet and even
>though the SS rivet is more noble than the aluminum mast the corrosion will
>be minimal.
>Adding the dielectric shim stock is a good idea as is dipping the SS rivet
>into something like Teff-Gel before inserting.
>
>SS rivets have better strenght and will resist corrosion. If aluminum rivets
>are used and the rivet happens to be less noble than the mast alloy, it will
>rapidly corrode and vanish. SS is definitely more noble than any of the
>common aluminun alloys so it will resist corrosion.
>
>Arild
Philip & Marilyn Lange
AE4OV & KD4JRC,
ORYOKI
Witness 35 Catamaran
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