Porthole Replacement Gasket

[Gregory Carleu]

I need a porthole replacement gasket for my Pearson 31-2. Unfortunately, I don't know the brand or where to find one. I've included some photos of one from another porthole. Anyone know where I can find one?

Thanks in advance,

Greg Carleu

[Mike Butler]

Greg

Have you tried Beckson Marine in Bridgeport CT?  That’s where I bought a gasket - I have a ‘87 31-2.

Regards

Mike Butler

‘Vela’

Sent from my iPhone

On Jan 10, 2026, at 2:22 PM, Gregory Carleu <gregc...@gmail.com> wrote:

I need a porthole replacement gasket for my Pearson 31-2. Unfortunately, I don't know the brand or where to find one. I've included some photos of one from another porthole. Anyone know where I can find one?

Thanks in advance,

Greg Carleu

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[Charles Shelby]

Greg

I took my gasket to a marine chandlery.  They had gasket material on a roll.  I installed the casket so the butt ends are located at the top of the port.  Also you will need to use a 3m glue, it’s yellow, for the installation.  Works great and no leaks 

Cheers 

Charles  

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[Last Resort]

They are Beckson windows.  There are 2 different sizes needed:  I believe 3 of the 410 model and 4 of the 512 model

Any marine store who stocks Beckson should have them.  When it's time to put them on, find something just the right size to stretch them out just a bit and put one at a time in the sun for 30-60 minutes....it will make your job ALOT easier!!!  I also replaced the screw on hold down knobs with the updated leverage ones. 

[Vincent Venezia]

My ports have leaked for 15yrs on my P26...had them out and rebedded twice. My lockers under the seats in the cabin fill w water. I even removed the glass from the frame and reglazed them. NOW ...im reading you have gaskets? I dont believe mine have any gaskets the aluminum butts right up against the fiberglass cut out. . Ive been rebedding them w a combo of bytoul tape and bedding adhesive. The only rubber gasket i have is the one on the inside of the port that runs inside the aluminum track that i think does nothing to seal....mostly for looks. Is there a gasket between the portlight and fiber cut out on the outside? Maybe thats been the issue. Didnt mean to hijack your post. Thanks V

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[Peter McGowan]

Mine didn’t, but they do now.  I used 1/8” closed cell foam tape.  1” wide, sticky one side.  Applied to inside of the frame, not the gelcoat.  Trimmed with a blade.  Worked well, 3 seasons now.  I figure every 5 years or so I’ll pop them out and either replace the tape or go around another time, probably every other time.  I didn’t use sealant, that makes it more likely I’ll actually take them out again in a couple of years.

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[Daniel Hoffman]

The Becton directions for how to install the portlights are very helpful. They want us to be happy with their products and put out a solid installation manual that's also great for rebedding.

Note that they tell us that tighter on tje windows whem we clost them isn't better because we can crush the gaskets. Small leaks at the gasket can be addressed with cleaning. Once crushed, they probably won't seal very well

Dan

Fourth and Goal 

31-2

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[Last Resort]

Very true on the crushing if too tight, but using a rubber renewing fluid and leaving them open, or loose for a bit can really help extend their life usage.