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Draining saturated foam? How do I do it?

Old 10-22-2002, 05:09 PM
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Default Draining saturated foam? How do I do it?

Does anyone have any ideas on getting the water out of saturated foam. I have a cat with saturated foam. I have been told to set the boat on an angle and it will drain eventually. This doesn't seem to be working. I drilles a few 1/8 inch holes in the hull, the water drips for two days than seems to stop, but the water still is in the foam. I really don't want to cut the deck open at this point. Thanks... [img]/infopop/emoticons/icon_rolleyes.gif[/img]
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Old 10-22-2002, 05:26 PM
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Default Draining saturated foam? How do I do it?

How did the water get in the hulls?

Do a search on this, there were some recent posts maybe a week ago.

The Cat
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Old 10-23-2002, 03:32 PM
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Default Draining saturated foam? How do I do it?

Many months ago, I was chatting with a salesman about disasters, and he told me a tale. Seems that he had the rear hatch(es) open when a rogue wave came over the sides and flooded his Robalo, shorted out both batteries, and ruined his day.

Story continued: he got it back to the trailer and the boat, which should have weighed about 4K weighed in at 11,000 lbs. Apparently those boats are sprayed full of some foam compound that is supposed to provide flotation by displacing water, but his soaked-up the water instead.

The repair facility sprayed some kind of solvent (or catalyst - or something - I'm no chemist) on the foam to disolve it, and then it would just pour out. Seems to me that it would be an environmental disaster to dispose of all that goop, but that's what skilled repair facilities are for... Then they sprayed some fresh foam into all the right places, and everybodys happy again.

I've got absolutely no idea what kind of solvent dissolves foam, but I'll bet somebody will respond with the info that you need.

Good luck with it!
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Old 10-23-2002, 05:23 PM
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Default Draining saturated foam? How do I do it?

Wow,

It's possibble to dissolve the foam and not remove it manually??????
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Old 10-23-2002, 07:06 PM
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Default Draining saturated foam? How do I do it?

Any one here of this solvent that won't harm a poly fuel cell or fiberglass??
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Old 10-23-2002, 07:14 PM
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Default Draining saturated foam? How do I do it?

I am not telling you to do this, but I spilled gasoline on some foarm in a boat by accident once. Just a little bit disolved a lot of foam.
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Old 10-23-2002, 07:25 PM
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Default Draining saturated foam? How do I do it?

Are you sure the guy said solvent, not saw vent?

Take one large and sharp chain saw, cut vent roughly the size and shape of the cockpit sole, just a little smaller, larger gets into real problems, remove all foam, come back later to THT for advice on how to put it back together.
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Old 10-23-2002, 08:31 PM
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Default Draining saturated foam? How do I do it?

EVERY group has one [img]/infopop/emoticons/icon_rolleyes.gif[/img]

..........Booby

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Old 10-24-2002, 04:02 AM
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Default Draining saturated foam? How do I do it?

Gaffmaster made a funny!
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Old 10-24-2002, 06:09 AM
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Default Draining saturated foam? How do I do it?

Take the boat to a auto spray painters shop with a "baked enamel" microwave oven.
Place inside and nuke her! [img]/infopop/emoticons/icon_wink.gif[/img]
You might wanna "remove susceptible items" first like ahh fuel tank, metal, LCD display electronnic components etc...you get the idea.
You can just warm her, or really heat her - add salt to taste and serve on a warm plate! [img]/infopop/emoticons/icon_biggrin.gif[/img]

Cheers

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Old 10-24-2002, 04:54 PM
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Default Draining saturated foam? How do I do it?

Trouty, your wife must love you!
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Old 10-25-2002, 02:43 AM
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Default Draining saturated foam? How do I do it?

I guess I wuz just thinkin out loud cat man...

Seemed kinda logical at the time - bit of a latteral thinker I am - gits me into all sorts of strife - but hey - lifes never dull! [img]/infopop/emoticons/icon_biggrin.gif[/img] [img]/infopop/emoticons/icon_wink.gif[/img]

Hey another idea occurrs to me..

Getting the water out of the open cell foam, is the same problem I have getting moisture out of timber to make it stable.

I do this with a dehumidifying kiln, as long as the boats shorter than 8 meters drop her around to my place and I'll get it out for you no sweat...

Depending how much water you got - could take anything like up to 3 months, but I WILL get it all out!

The fibreglass and foam wouldn't melt at 45 degrees C would it?..(bout 105 F on the ol scale I gueess)

Course - it could be a long tow to my place!

Cheers!

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Old 10-25-2002, 03:58 AM
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Default Draining saturated foam? How do I do it?

it's an idea............

hmmmmmm [img]/infopop/emoticons/icon_confused.gif[/img]
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Old 10-25-2002, 04:36 AM
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Default Draining saturated foam? How do I do it?

I was recently discussing this with a marina neighbor. He just went through this on his skiff. He drilled and drained over a few weeks and the skiff still weighed a ton. After much frustration, he tapped the deck and inserted a quick-connect air fitting (glassed in place). He then connected the fitting to his compressor and left it connected for 2-weeks at 10 psi. He said after 2-weeks the boat was completely drained and weighed about 400 pounds less. He indicated that immediately after connecting the air, the water began to run out of the drill holes.

After draining, he removed the fitting and patched the holes.
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Old 10-25-2002, 12:45 PM
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Default Draining saturated foam? How do I do it?

That sounds like it might work...........You got me thinking on this one. Using solvents to rid the foam maybe messy...This still leaves the poor quality foam in my boat...hmmmmmmmm [img]/infopop/emoticons/icon_rolleyes.gif[/img]
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Old 10-26-2002, 08:27 AM
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Default Draining saturated foam? How do I do it?

may help your problem. I have heard that subzero temperatures will expand the foam and crack it. During the melting process the water will ease out. Can you put your boat in a large frigerator, are you in a cold climate? I really don't hate boats. [img]/infopop/emoticons/icon_biggrin.gif[/img]
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Old 10-26-2002, 06:21 PM
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Default Draining saturated foam? How do I do it?

Why not do it right. Cut the deck open. Remove the foam and replace with correct foam. Why cut corners??????? [img]/infopop/emoticons/icon_confused.gif[/img]
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