[C320-list] Portlight Replacement/Repair?

[Christian]

David, keep in mind the frames are aluminum, and the fasteners are
stainless steel, so yes you could over torque them quite easily. But they
should be snug.

On Sat, Mar 26, 2022, 4:07 PM David Wellerstein <dwellers at mac.com> wrote:

> Thanks for the anti-crazing tip.  I will definitely get some of that!
>
> Just pulled the plastic interior frames and found a bunch of the fasteners
> were quite loose.  I hope you can’t over-torque them but I did go around a
> couple of times on each port.  I’ll take the hose out and see how it goes.
> But it doesn’t look like changing them out is going to be a big deal.  Just
> some screws, cleanup and adhesive.  Famous last words, right?
>
> Thanks again for all the feedback!
>
> David
> C320 #118 Dream Catcher
>
> Sent from my iPad
>
> > On Mar 26, 2022, at 9:40 AM, Mark Hood <mark at hoodcanvas.com> wrote:
> >
> > Hi all, To prevent crazing on ports use 210 Polish and Cleaner. We have
> > used it for years on all our boats and regular application stops this
> from
> > happening. It is made in Cambridge, MA by Summer Labs and used in
> airports
> > throughout the world on airplane windows to prevent this, it works. Mark
> > Hood #809
> >
> >> On Sat, Mar 26, 2022 at 10:53 AM Michael Paris <mparis495 at gmail.com>
> wrote:
> >>
> >> Thanks Troy. That’s good to hear. I have the rounded ended model (Lewmar
> >> 1RE new standard) and the replacement lens itself is $100. to $120. each
> >> because the hinges are mounted on the lens.
> >>
> >>>> On Mar 25, 2022, at 10:43 AM, Troy Dunn <troutwarrior at gmail.com>
> wrote:
> >>>
> >>> Micheal P.
> >>>
> >>> We are going on six years with no discernible change in appearance.
> >>>
> >>> Having said that, acrylic is incredibly sensitive to exposure to
> >> solvents.
> >>> Over time even the fumes of chemical solvents will introduce just
> enough
> >>> changes to the top layer of acrylic to induce stress fractures (aka
> >>> crazing).  So, being careful using solvents near the lenses is
> important.
> >>> Soap and water only for cleaning.
> >>>
> >>> Over extended periods of time UV damage will have a similar effect.
> >> There
> >>> really isn’t any way to prevent that.
> >>>
> >>> Acrylic is relatively inexpensive and considered by most to be the best
> >>> material for this application.  If you are attempting to DIY lenses,
> just
> >>> be sure to buy cast acrylic.   We buy ours from estreet plastics.
> >>>
> >>> FWIW
> >>>
> >>> Troy Dunn
> >>> Hull #514
> >>
> >>
>