Sealing for deep water crossings

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Re: Sealing for deep water crossings

Postby tony.latham » Sun Oct 20, 2019 6:14 pm

Just had a look at latches for the hatch...


I install adjustable toggle latches.

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They'll probably only work for a Fredrick's style hatch. But since the gas struts are pulling it shut while closed, I'm not sure they are needed.

Tony
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Re: Sealing for deep water crossings

Postby Brett P » Tue Oct 22, 2019 7:25 pm

Thanks Tony
I'll have a look at those latches may be just the right thing to pull the hatch tight to seal.
I am still wondering about the aluminium cladding on the sides I was thinking I would float it over the ply and use the trim and windows / doors etc to hold it but if seal the bottom of the sheets to stop water getting in how does condensation get out. :?
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Re: Sealing for deep water crossings

Postby tony.latham » Tue Oct 22, 2019 10:40 pm

but if seal the bottom of the sheets to stop water getting in how does condensation get out. :?


I didn't seal my aluminum chip guard. If water gets in, it can get out.

T
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Re: Sealing for deep water crossings

Postby Aguyfromohio » Wed Oct 23, 2019 8:08 am

tony.latham wrote:
I didn't seal my aluminum chip guard. If water gets in, it can get out.

T


An old greybeard design engineer for military equipment told me that is the best approach.
Always assume water will get in somehow, no matter how well you seal things up with gaskets and coatings.
Arrange for water to drain out gracefully, instead of remaining trapped inside to cause trouble.
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Re: Sealing for deep water crossings

Postby greygoos » Wed Oct 23, 2019 9:38 am

Try this guys post. He built a floating teardrop. viewtopic.php?f=27&t=46755
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