[Public-List] Bulkheads

[Chip Dance via Public-List]

#456 has had the 5/16" bolt upgrade at some point by a PO, but she sat
neglected for so long, much needs to be rebuilt/replaced, including the
bulkheads (standing water up to the v-birth). I haven't test drilled the
knees yet, but I would be very surprised if the plywood within is still of
any use. However, the tabbing and glass around the knees still looks good.
So I wonder if there is any advantage or concern with performing surgery on
the knees? My thought is this:
cut into the knee along the edge, gut out the plywood and replace with G10
cut to fit the void and adhered with thickened epoxy or ??,  re-drill the
bolt holes using the remaining for/aft parts of the knee as a guide,
re-insert the chain plate, re-glass the edge of the knee and perhaps
another layer or two over the entire knee and tabbing.
The advantages I see in this refit process: re-using the original tabbing
so you know the plates and knees are situated and adhered exactly as they
were designed and built originally; eliminates the need to add new tabs (a
concern for the neophyte); eliminates all concerns of future plywood rot
(no plywood, no plywood rot). Of course maintaining a good seal around the
chainplates would still be advisable, but not as critical as if the knees
contained plywood.
Keep in mind I am new at this, hence the sought advice, so I may not be
thinking of everything.

Thoughts?

Chip
#456

On Thu, Feb 4, 2016 at 4:23 PM, Gordon Laco via Public-List <
public-list at lists.alberg30.org> wrote:

> Hello Stephen,
>
> I was a great believer in SikaFlex in my wooden boat days, but have turned
> back to Boatlife 'Lifecaulk' for Surprise.  I think it adheres better to
> fibreglass than SikaFlex (but not too well as with 5200)
>
> I've never come across a non-curing butyl but do recall the stuff
> originally
> used in our boats was something similar.
>
> Gord #426 Surprise
>
>
> On 2016-02-04, 5:54 PM, "Stephen Gwyn via Public-List"
> <public-list at lists.alberg30.org> wrote:
>
> >
> > So what are people's favourite sealant? I've been using
> > BoatLife polysulfide sealant. Polyurethane  (3M5200 and Sikaflex)
> > is too permanent. Silicone is permanent enough and once you
> > use it, nothing will stick to where it has been.
> >
> > I was reading a british sailing, which recommended a butyl sealant
> > which stayed sticky indefinitely, meaning that when the seal flexed
> > and split, it would just seal itself again.
> >
> > Thoughts?
> >
> > SG
> >
> > _______________________________________________
> > These businesses support your Association:
> > http://www.alberg30.org/store/A30supporters.html
> > Please support them.
> > _______________________________________________
> > Public-List mailing list
> > Public-List at lists.alberg30.org
> > http://lists.alberg30.org/listinfo.cgi/public-list-alberg30.org
>
>
> _______________________________________________
> These businesses support your Association:
> http://www.alberg30.org/store/A30supporters.html
> Please support them.
> _______________________________________________
> Public-List mailing list
> Public-List at lists.alberg30.org
> http://lists.alberg30.org/listinfo.cgi/public-list-alberg30.org
>