Date: Fri, 08 Jan 1999 09:44:04 +0100
From: Stefano Moretti <S.Moretti@agora.stm.it>
To: baidarka@lists.intelenet.net
Subject: Re: baidarka Bonding wood to aluminum
HendrikMaroske wrote:
However, no matter
> > how fast you apply the epoxy after sanding the aluminum, an oxide film
> > will form.
>
> Good tip #1:
>
> > The original Pulsar people recommended sanding the aluminum, then
> > immediately wiping it with MEK (I think), and applying epoxy. Then they
> > recommended that you "wet-sand" through the epoxy to hopefully clean off
> > the thin layer of oxide and suspend it in the epoxy. Then you bond the
> > other part.
This is also the method suggested by Gougeon bros in their Gougeon bros
manual for boatbuilding. They claim that bonded cleats on a trimaran
hold up the boat when moored during an hurricane.
I have experimented it with success, although I would not (perhaps I
have already) fly in a glued structure.
As a matter of fact, also wood oxidizes and a freshly exposed surface is
critical in any glue bonding.
Stefano