Alternatives to foam

W

wydopen

Guest
what about pouring the foam into a thick bag inside the tray area and letting it go off in there....it would still be there it would just stay dry...you could still run some drain plugs to get out the little that does get in because it wouldnt be getting absorbed by the foam
 

douglee25

m3booooy
Location
South Jersey
Closed cell foam doesn't absorb water (so they say). I'm thinking that the foam doesn't take on water as quickly as everyone makes it out to be. What do people think?

Doug
 

douglee25

m3booooy
Location
South Jersey
The 2-part urethane foam commonly found in SUperjets is not closed cell foam.

But the replacement foam we put in is. So why are people worried at that point?

Doug

Edit:

Taken from UScomposites.com

Is this foam water resistant?

Yes, but with the following caveat. The foams that we sell are considered closed-cell, which means that each cell that makes up the foam structure is completely closed off from surrounding cells which prevents it from acting like a sponge. It is completely safe for this foam to be in contact with water for hours/days/weeks and even months with no adverse effects. However, it should never be submerged in contact with water permanently. Over a period of years the water contact can begin to soften the foam and cause it to lose its closed-cell status. This foam is designed primarily to be used as an insurance policy in case of damage/holes that could cause a vessel to lose buoyancy. Pinhole sized openings would essentially have no effect on the foam since the amount of exposure is so minimal but you should always make repairs as soon as possible to keep the foam effectiveness as good as possible. This will be the case will all after market closed-cell polyurethane foams and even manufacturer installed foams.
 

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
That's what they say.
I have found evidence to the contrary a few times.

And the OEM Yamaha foam is the exact same stuff.
 

Mouthfulloflake

ISJWTA member #2
Location
NW Arkansas
I like it.

its SO much trouble though, to open those plugs every now and then.

and of course, you dont get to play with long drill bits and wire brushes, and vacume cleaners.

man, where is the fun in THAT?



No idea how it is in there but the ski weighs the same as it did when I foamed it 4 years ago and installed a drainage system.

Mark44
 
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