[C320-list] Portlight Replacement/Repair?

[P.F. Ross]

Greg, bunch of info here on the Lewmar website:

https://www.lewmar.com/node/11265?v=24318

Frank Ross

On Wed, Apr 13, 2022 at 10:33 AM GREG SUTTON <sutt47 at msn.com> wrote:

> I have to redo my ports also.  Just wondering if anyone knows if there is
> a diagram available showing how they are put together and where I can find
> it?
> Greg Sutton
> Liberty
> #128
>
> Get Outlook for iOS<https://aka.ms/o0ukef>
> ________________________________
> From: C320-list <c320-list-bounces at lists.catalina320.com> on behalf of
> Dave Hupe <hoopdtwo at yahoo.com>
> Sent: Tuesday, April 12, 2022 8:38:33 PM
> To: C320-List at Catalina320.com <C320-List at Catalina320.com>
> Subject: Re: [C320-list] Portlight Replacement/Repair?
>
> I purchased 1inch wide x 30 feet long white butyl tape from SailRite in
> preparation to rebed my genoa track when the weather offers me a several
> day dry and warm window opportunity.  The price was maybe $12. It seems
> good quality but I haven't yet put it to practice.  So, time will tell
> (soon).
> Dave Hupe
> 1994 C320 #32
> Holland, MI
>
> Sent from Yahoo Mail on Android
>
>   On Tue, Apr 12, 2022 at 8:18 PM, P.F. Ross<pfrstl at gmail.com> wrote:
>  Hi David,
>
> I used butyl tape on all seven of my replacement portlights.  But as Jeff
> said, the "Bed-it" butyl tape that I really liked is not currently
> available from marinehowto.com due to RC's medical situation.
>
> Also along the lines of Jeff's comment, I used two layers of tape but I did
> this by simply folding the tape over on itself along its length as I stuck
> it to the frame.  I stuck it to the angled edge of the frame that would
> contact the hull first and not to the flat, somewhat recessed portion of
> the frame that looks like it was made for sealant.  I slowly tightened the
> frame over a couple of days and would trim off excess using a plastic razor
> blade (this is a real and handy thing, look it up on Amazon) and then clean
> up with some mineral spirits.  All are now leak-tight.
>
> Good luck, please let us know if you find a good stretchy, sticky butyl
> tape.
>
> Frank Ross
> Beta Wave #206
> Naples, FL
>
>
>
> On Tue, Apr 12, 2022 at 7:51 PM Jeff Hare <Catalina at thehares.com> wrote:
>
> > David,
> >
> > If *I* were rebedding side portlights, I would be using Butyl Tape. While
> > I use Bed-It brand from Marine How-to, he's very unfortunately recovering
> > from a tragedy and his store is offline (maybe for good). Butyl Tape is
> far
> > less messy and easier to get right than polysulfide, Sikka or similar
> > adhesives in my opinion. I would be likely to use more than one layer.
> > Dicor BT-1834 is a butyl tape that might be a good option but I haven't
> > researched it much. If you go this route, look into applying the tape to
> > the window frame in a couple layers to be sure that it will conform and
> not
> > leave any voids.
> >
> > Clean the surface well first. Colinite 920 does a good job.  Best to
> > tighten the frame gradually on a warm day so that the butyl can properly
> > fill out all the space. Remove any squeeze-out as soon as you can.
> >
> > That's what I believe I would be doing if I had a hatch to rebed. I did
> > the center salon overhead hatch like this years ago when I swapped the
> Aft
> > Cabin emergency hatch with the main salon center hatch. The center had
> > become crazed, so I swapped them. You don't have that option since your
> > hull doesn't have the escape hatch in the aft cabin. That was an addition
> > on hulls somewhere around 2000 or so.
> >
> > -Jeff H.
> >
> >
> > -----Original Message-----
> > From: C320-list <c320-list-bounces at lists.catalina320.com> On Behalf Of
> > David Wellerstein
> > Sent: Monday, April 11, 2022 12:39 PM
> > To: C320-List at Catalina320.com
> > Subject: Re: [C320-list] Portlight Replacement/Repair?
> >
> > So I broke down and bought four new Lewmar portlights for the cabin.
> > We’ll tackle the others later but for now I’m excited to get these done.
> >
> > Looks like removal is the toughest part of the job so I’ll do one at a
> > time and see how it goes.
> >
> > Big question is what material to use to bed the ports?  It seems 4000 or
> > (the variant from Pettit which I got for free at a local boat show) are
> > right for a caulk-type.  But I’m reading a lot about butyl tape.  I would
> > love for the C320 hive and to weigh in here.  I’d love to hear from
> anyone
> > who’s done both and what you’ve landed on as the best choice.  Seems that
> > since fasteners are holding the inner and outer frames together that
> > adhesion is not the issue.  It’s really about waterproofing and the butyl
> > tape looks like it works fine.  Add to that the ease of working with it
> and
> > the ease of removal…seems like the right choice.
> >
> > Thanks as always!
> >
> > —David
> > C320 #118, Dream Catcher
> >
> > > On Mar 27, 2022, at 1:32 PM, Troy Dunn <troutwarrior at gmail.com> wrote:
> > >
> > > Some folks have had success just replacing the gasket on the Bomar
> hatch.
> > > I had no such luck.  The problem is that the sealant (Dow795) that
> seals
> > > the lens to the frame needs to make a tight seal against the gasket
> too,
> > > mine kept leaking no matter what I did.  Since my hatch lens was over
> 20
> > > years old it was EOL anyhow.  I ended up making a new lens  and
> > > refurbishing the hatch.  Worked out well.  You can search the emails
> > for
> > > the write up.  Pictures in my gallery.
> > >
> > > Troy Dunn
> > > Wonky Dog
> > > Hull#514
> >
> >
>
>