[C38] Spartite VS Mast boot
Les
hlhowell at pacbell.net
Fri May 9 11:44:18 EDT 2008
Long ago, rope gaskets were used to seal everything on a ship, so in
that sense it is probably OK, but remember that if the rope is not fully
impregnated it will eventually rot, unless it is nylon and I am not sure
what would happen to nylon long term.
However, the mast partners help transfer the energy from the sail to
the boat hull. On our boats, the original design was to shim the mast
into the partners with rubber blocks to help absorb shock loads, deal
with flex (from the loading, and temperature affecting the fiberglass
and wood), and transfer the constant energy to the boat's deck.
With no shims, the loads are being held only by the mast step (about a
1/2" aluminum plate holds the foot of the mast, and locks it to the mast
step). I suspect that over time, this would mean some issues to the
step, but you would have to ask Frank Butler or S&S about that. Also
shock loads may make the mast flex out of column enough to strike the
partners, and could cause fiberglass to crack, or the partners to take
more stress than intended. Again, the designers could say more about
that.
Russ, I don't think any yard would step the mast without securing it to
the partners in some fashion, are you sure there are no shims in your
installation?
Regards,
Les H
On Fri, 2008-05-09 at 08:21 -0600, Max Soto wrote:
> Hi,
>
> My boat came with rope three strand rope between the mast, deck and
> collar. A sela of silicone is at the top preventing water to come in.
> I had no leaks, but just in case I added mast collar seal tape.
> Is it ok to have rope and silicone in here??
>
> Max
>
>
> 2008/5/9, Duff, Russ (R.W.) <rduff at visteon.com>:
> Somehow, I don't see how Spartite can make the mast partner
> any more waterproof than a good mast boot. Am I missing
> something? I installed a good rubber mast boot (appropriately
> sealed) and have had no leaks. I also did not use any shims
> when the mast was installed. Can this be a problem?
>
>
>
> Sincerely,
> Russ Duff
> Catalina 38, Hull #112
> "AVANTURA"
> Lake Erie
> Grosse Ile, Michigan
> RDUFF AT VISTEON DOT COM
>
> AVANTURA AT COMCAST DOT NET
>
>
>
>
>
>
> ______________________________________________________________
> From: listserve-bounces at catalina38.org
> [mailto:listserve-bounces at catalina38.org] On Behalf Of Steve
> Smolinske
> Sent: Friday, May 09, 2008 3:20 AM
> To: hlhowell at pacbell.net; Catalina 38 Listserve
> Subject: Re: [C38] Bedding Shrouds and leaks
>
>
>
>
> I've been told by both the yard and the rigger to be careful
> with spartite both commented to make sure you follow the
> directions and apply vaseline to the inside of the deck ring.
> If not they warned that the spartite will adhere to both the
> mast and the ring making it extremely difficult to remove the
> mast in the future. We just had a new boot put on when the
> mast got stepped, if we get water problems in the future I am
> going to use the spartite. I like the load deflection
> characteristics along with all the reviews about how well it
> seals.
>
>
>
>
>
> Steve
>
>
>
>
>
> ______________________________________________________________
> From: Les
> Sent: Thu 5/8/2008 10:24 PM
> To: Catalina 38 Listserve
> Subject: Re: [C38] Bedding Shrouds and leaks
>
>
> On Fri, 2008-05-09 at 00:15 -0400, Charles wrote:
> > By the way, I highly recommend Spartite. My mast and collar had taken
> > a
> > beating over the years with perhaps a too zealous application of mast
> > shims. Spartite solved this problem and I no longer get any water
> > coming in the cabin from the mast. Even better, mast stress on the
> > deck
> > is evenly distributed which can never happen with shims.
>
> I'll second that. We had water on every wet day coming into Jace. No
> delamination or other problems, but the mess on
> the cushions at the forward port settee on the dinette were miserable.
> Spar-tite fixed it. And our clay dam is still inplace as well. We had
> it done when the mast was pulled and painted. We replaced all the
> standing rigging at that time as well.
>
> Someone asked about another location for leaks that caused drops near or
> at their chain plates. On JACE the windows were leaking, and the
> stanchions were leaking. We redid the windows (thank you Catalina
> Direct) and rebedded the stanchions with all new hardware. The leaks
> ceased. Last week at the boat we noticed some new drops. Checking it
> looks like either the toe rail (I'll need help with that), or the tracks
> for the fairleads. That I can do myself, so sometime in the next week
> or two, I'll take that off and fix it.
>
> My current project is to add solar panels. I have two 65 watt Kyocera
> panels which measuer about 30x25. I am rigging a support across the
> center of the dodger (still cloth) which will hold a 1" stainless rail
> onto which I will clamp the solar panels. This will add about 25lbs or
> so to the dodger, but should be well within limits. The wind loading
> would not seem to be too great as a 2" stainless pipe stand with 1"
> cross bar is one of the options for most solar installations for panels
> up to 60" x 24", so mine should present less than 1/4 that in wind
> loading because they will be shielded by the dodger and mast. Time will
> tell.
>
> I like Max's rigid vang, and that may be one of our next purchases.
>
> Regards,
> Les H
> JACE
>
>
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>
>
> --
> Max Soto
> C38 #198 ESTANCIA
> Puntarenas, Costa Rica
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