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Old 30-12-2010, 02:10   #1
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Rubber Seals in Portlights

Just wondering has anyone tried/used a alternative option than the branded replacement seal on a std (old type 1998) Lewmar portlight?

We are looking to replace ours as they are getting a bit worn looking, but with eleven to do at the price of 36GBP quoted by our local Beneteau dealer it is an expensive exercise. I am thinking there must be a "universal" option. Seems ridiculous for a small length of rubber seal!

(I know, I know all things boating are ridiculous and expensive...lol)

Thanks Clare
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Old 30-12-2010, 05:26   #2
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Don't know what shape you are looking for, but try Hamilton Marine, Portland Maine, US.
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Old 30-12-2010, 10:37   #3
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Try searching out < rubber extrusions window gaskets >.
You’ll need to know the specific profile and dimensions, to get a match.
ie ➥ door seals, rubber seals, rubber extrusions, window rubbers by seals direct
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Old 30-12-2010, 12:52   #4
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No storm in a port...

G'Day Clare,

We too have Lewmar ports, and were having minor leakage in heavy rain/spray conditions. I was considering replacing those gaskets that you mention when I encountered a chap who worked on hatches professionally, and he was kind enough to give free advice. In short, he strongly advised to NOT try and replace them! He said that it was nearly impossible to get the new ones fitted, even with his considerable experience. The gasket has a sort of diamond-shaped tab which fits very tightly into the groove in the frame, and he said that it was extremely hard to get it threaded all the way around the frame, especially if there was any corrosion in the area.

The good news in our case was that he also said that it was seldom degradation of the gasket that caused leakage. He advised carefully cleaning the sealing area of the rubber. If that didn't cure the leakage, he said that the usual cause was the small rubber seal that fits between the two halves of the alloy frame. He said to take a small sharp blade (like a scalpel) and remove that seal completely, working from the outside. Then after cleaning any corrosion from the ends of the frames, fill the gap with Sikaflex 291 or equivalent.

We've done this on several ports now with complete success. For us, this chap was a godsend. YMMV!

Good luck with it

Cheers,

Jim and Ann s/v Insatiable II lying Church Point, NSW, Oz
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Old 30-12-2010, 13:39   #5
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Quote:
Originally Posted by Jim Cate View Post
... He advised carefully cleaning the sealing area of the rubber. If that didn't cure the leakage, he said that the usual cause was the small rubber seal that fits between the two halves of the alloy frame. He said to take a small sharp blade (like a scalpel) and remove that seal completely, working from the outside. Then after cleaning any corrosion from the ends of the frames, fill the gap with Sikaflex 291 or equivalent.
We've done this on several ports now with complete success. For us, this chap was a godsend ...
Good advice.
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Old 30-12-2010, 14:34   #6
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Hi Clare,
If the tip above does not work and you do want samples of seals from the firm Gord used as an example (Seals Direct) then be aware they are only 1/2 mile from us.
If you do need local help to get a few samples collected and sent, then pm me.
Happy New Year.
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Old 30-12-2010, 15:16   #7
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A couple of years ago mine began leaking and a friend sent me to a printers supply shop to buy (rubber revitalizer). It apparently is only available at those outlets so don't waste time looking anywhere else. Stuff works great! I've used it every year since with no more leaks.
all the best
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Old 30-12-2010, 15:33   #8
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AWESOME guys. Thanks for all that excellent advice. We will now proceed with that process. Some of ours seem to be only leaking in the well of the handle so we are going to look at replacing the o ring between the acrylic and handle too.

Thanks so much again...gotta love this forum!
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Old 30-12-2010, 16:27   #9
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A couple of years ago mine began leaking and a friend sent me to a printers supply shop to buy
rubber revitalizer ...
I never heard of it before.
Is this it (similar)?
Rubber roller revitalizer for printer repair. Rubber-Refresh can make your printer work like new.
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