Expanding foam
 

I am thinking of injecting the expanding foam type product into my
underfloor flotation tank, the boat is a 5m Nesscraft. Has anyone done this
or even thought about doing it? Would it be a wise move? The boat is sound,
I just want to add a bit more strength and quiet it down a bit. All ideas
and suggestions greatly appreciated.
Thanks, .. Sam.

Expanding foam
 

The Boston Whaler built their reputation on this premise. They have a double
hull with a foam in between making it an unsinkable boat. Ranger also uses
this in their boats. You won't hurt anything except lose space, just be
careful you don't obstruct any drainage areas.

--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Babbling Brook Photography
Quality Framed Photography of
the Great Outdoors.
30 Day Money Back Guarantee!
http://www.babblingbrookphotography.com
Email

"Sam" wrote in message
...
I am thinking of injecting the expanding foam type product into my
underfloor flotation tank, the boat is a 5m Nesscraft. Has anyone done
this
or even thought about doing it? Would it be a wise move? The boat is
sound,
I just want to add a bit more strength and quiet it down a bit. All ideas
and suggestions greatly appreciated.
Thanks, .. Sam.

Expanding foam
 

"Babbling Brook Photography" wrote
in message ...
The Boston Whaler built their reputation on this premise. They have a
double
hull with a foam in between making it an unsinkable boat. Ranger also uses
this in their boats. You won't hurt anything except lose space, just be
careful you don't obstruct any drainage areas.

Remember, the Titanic was an unsinkable boat too!!

Expanding foam
 

I took all the foam out of my boat when I replaced the floor and some of the
stringers and did not replace it. If it is against wood you can potentially
trap water and the wood will rot. And don't don't kid your self about
sealing it, water is pretty insiduous over years.

"Sam" wrote in message
...
I am thinking of injecting the expanding foam type product into my
underfloor flotation tank, the boat is a 5m Nesscraft. Has anyone done
this
or even thought about doing it? Would it be a wise move? The boat is
sound,
I just want to add a bit more strength and quiet it down a bit. All ideas
and suggestions greatly appreciated.
Thanks, .. Sam.

Expanding foam
 

"Sam" wrote in message
...
I am thinking of injecting the expanding foam type product into my
underfloor flotation tank, the boat is a 5m Nesscraft. Has anyone done
this
or even thought about doing it? Would it be a wise move?


Run a few tests on the foam you intend to use before you install it. Some
of this type of foam is a "closed cell" foam and is not water soluble.
Others are "open cell" which soaks up water like a sponge, and others will
dissolve in water.

Rod

Expanding foam
 

Even if the foam will not absorb water ( and most will, even if just a bit)it
will hold moisture against what ever it touches. As corrosion never sleeps,
neither does rot...minutes into hours into days into....
And Whaler owners have noticed that over time their boats seem to weigh more
and more and...water weighs 8 lbs. per gal...Hmmm...
I'm against using foam, but it's your boat.
Best wishes
Mike

Expanding foam
 

Lawrence James wrote:
I took all the foam out of my boat when I replaced the floor...

Same here, but the morons who built my boat used Oasis. You know,
the green stuff that florists use to stick plants into because it
*HOLDS* water! Lightened my boat up AT LEAST 200 pounds, maybe more.
I'm only hoping to get a year or two more out of my boat anyway.

-Jim

Expanding foam
 

CaptMP wrote:
removed
And Whaler owners have noticed that over time their boats seem to weigh more

I personally have never heard of this. I know there are a couple
folks out in Ca. who have an old Whaler they are experimenting with
that is obviously 'disposable'. :^) They weighed the boat before
the test, cut some holes through the hull and are going to wait a
year and see how much water it actually takes on or if it will sink.
Can't remember exactly where I sawe that thread but hope the end
results will get posted. Could be interesting.

-Jim

Expanding foam
 

Thanks for the info, I will leave well enough alone. As I said there is
nothing wrong with the boat, I just wanted a bit more safety but will not be
adding the foam after all. Once again Thanks everyone. .. Regards.. Sam.

Expanding foam
 

In article ,
says...
I am thinking of injecting the expanding foam type product into my
underfloor flotation tank, the boat is a 5m Nesscraft. Has anyone done this
or even thought about doing it? Would it be a wise move? The boat is sound,
I just want to add a bit more strength and quiet it down a bit. All ideas
and suggestions greatly appreciated.
Thanks, .. Sam.



Be careful not to overfill it. That stuff can have very strong expanding
properties. I once put it around a window and when it expanded the window
would not slide. I have recently seen products at home depot that expand
to a smaller volume which would have less chance of cracking something.

Expanding foam
 

Bchbound wrote:
Be careful not to overfill it. That stuff can have very strong expanding
properties. I once put it around a window and when it expanded the window
would not slide. I have recently seen products at home depot that expand
to a smaller volume which would have less chance of cracking something.

Good to point that out, but it doesn't happen for the reason stated,
although that is the common perception. The insulating foam you're
referring to will only expand to fill voids, and if there are any holes
or cracks, it will find its way out of there too. It will not expand
adding pressure. The problem in the application you're referring to is
that the foam fills the cavity and removes the expansion and contraction
characteristics. i.e. when everything is expanding in warmer/hotter
weather, your window/frame can no longer do this. Best case you won't
be able to open your window. Worst case, something breaks.

-Jim

Expanding foam
 

On Sat, 24 Apr 2004 14:47:31 GMT, Bchbound
wrote:

In article ,
says...
I am thinking of injecting the expanding foam type product into my
underfloor flotation tank, the boat is a 5m Nesscraft. Has anyone done this
or even thought about doing it? Would it be a wise move? The boat is sound,
I just want to add a bit more strength and quiet it down a bit. All ideas
and suggestions greatly appreciated.
Thanks, .. Sam.
I'm far from an expert on this but I think you can get "open cell" and
"closed cell" foams and the open cell can absorb water.