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 Catalina/Capri 25/250 Sailor's Forums
 General Sailing Forum
 Marelon verses Bronze thru-hulls		  New Topic  Topic Locked
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OJ
Master Marine Consultant

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USA
4382 Posts
Initially Posted - 02/20/2002 :  18:22:17  Show Profile
Any distinct <i>technical</i> advantage of one over the other?

Steve Madsen
#2428
OJ(Ode to Joy)

[url="http://catalina25-250.org/photo0.htm/"]<img src="http://www.catalina25-250.org/photo/ode075.jpg" border=0>[/url]
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Gary
1st Mate

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58 Posts
Response Posted - 02/22/2002 :  11:20:54  Show Profile
Since no one else replied, I used marelon components when I replaced my original to hulls and corroded, bronze gate valves last summer. My boat is permanently docked in a salt water marina and marelon is not subject to galvanic corrosion. Marelon is not
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Douglas
Master Marine Consultant

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1595 Posts
Response Posted - 02/22/2002 :  12:46:39  Show Profile  Visit Douglas's Homepage
Take a look at the last Vessel Assist flyer that came out. It shows numerous vessel sinkings due to the maralon and plastic through hulls. Maralon, nylon, teflon, all products of the plastics family have chemicals in them to keep them flexable. Theese che
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Douglas
Master Marine Consultant

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1595 Posts
Response Posted - 02/22/2002 :  12:50:43  Show Profile  Visit Douglas's Homepage
Opps by the way you should not be using gate valves. Especialy ones from the hardware store. The valve should be a ball or cone valve. The cone valve usualy has a fitting so it can be greased. The ball valve usualy has a teflon wipper inside.
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ltenny
1st Mate

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35 Posts
Response Posted - 02/27/2002 :  20:41:36  Show Profile
One other thing I've read (I have no real life experience with this but just passing it along) is that Marelon fittings can melt if there is a fire onboard, whereas bronze fittings will be OK.



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Mark Maxwell
Captain

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USA
329 Posts
Response Posted - 02/28/2002 :  02:28:45  Show Profile
Yes the fittings will be ok but because metal is an excellent heat conductor all the sealant used will be ruined and they'll just fall out <img src=icon_smile_clown.gif border=0 align=middle>

Mark-
<img src="http://personal.jax.bellsouth.net/jax/l/c/l
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tinob
Master Marine Consultant

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USA
1883 Posts
Response Posted - 02/28/2002 :  08:37:10  Show Profile
Sounds like a backup fire extinguisher...fire melts marelon, marelon fitting falls out, boat sinks putting out the fire.....I LIKE IT...I LIKE IT. <img src=icon_smile_wink.gif border=0 align=middle>

Val on the hard DAGNABIT

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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.