Thru Hull

ken52

Petty Officer 1st Class
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Jul 27, 2008
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Replacing all my fish box & bilge hoses. Looking at the thru hulls looks like now would be a good time to replace them too. Which sealant would be approiate to use 3M 4200 or 4000 and do the metal thru hulls last longer than the plastic type?
 

ken52

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Re: Thru Hull

Thanks for you reply Wood.
 

Cadwelder

Lieutenant Commander
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Aug 30, 2010
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Re: Thru Hull

The 3M 4200 is fine for sealing these.....I to like the brass or stainless fittings, but I've seen the plastic ones that are 20+ years old and still working fine. So it' really one of those "how much do I want to spend" thing.
 

ken52

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Re: Thru Hull

Thanks Cadwelder for the reply.
 

oops!

Supreme Mariner
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Oct 18, 2007
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12,932
Re: Thru Hull

any thru hull fitting is usually considered a permanant fitting.....this means 5200, but 4200 will be fine.

cheers
oops
 
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