Help with foaming in footholds

[HAMMER]

I got this stuff called Evercoat Marine 2-part foam it, 2 lb closed cell urethane.
Is this the right stuff to re-foam after footholds r in?.
1- How much do i mix at once
2- How much should i pour in at a time to make sure i get all the voids ?
3- Does this stuff expand fast or slow?
I don't know, i was thinking maybe mixing about 16oz @ a clip,pour it in see what happens and go from there.
If it doesn't fill up the first time how soon can i add more to bring it up to the top?.
If anyone's experienced with mixing and pouring this stuff, any advice with do's and don'ts is appreciated.
If i pour too much in at once can i blow the foothold out?.

I'm lost!


HAMMER

 

[Matt_E]

i was thinking maybe mixing about 16oz @ a clip,pour it in

Bingo. Rinse and repeat after that.

 

[HAMMER]

Thank you brutha Matt E!
Is that somethin what u did

 

[HAMMER]

did i buy the right sh%t?.

 

[jetskiking]

I poured mine in 1/2 cup intervals.I also used 3lb foam. Everybody always argues over 2 or 4 lb so I used 3

 

[HAMMER]

Yeah i know about the 2lb-3lb debate
I say whatever, just GET IT DONE ALREADY !
anyways thanks for the advice thus far.
Everything i know i learned / learning from u guys and sites like this
THANKS


HAMMER

 

[beachedflunkey]

I just used the 2lb uscomposites stuff to backfill my one-way valve. Mixed in 8oz portions and should have stopped halfway through the second portion :bigeyes: . Mix it 1:1. It pours like maple syrup and starts to expand in 30-45 seconds so mix fast. Wait time probably varies depending on temp. I waited an hour @ 75F but could have repoured sooner.

 

[sflsurfrider]

16 oz's sounds like a lot just for footholds. mix in small increments at least 15 minutes apart.

 

[hangtime]

I mixed in 8 oz portions myself .I got the Blowsion kit .
It said mix and shake for 15 seconds but the stuff started coming out of the applicator bottle in 5 seconds.Make sure you are ready when you mix it :cool2:

 

[Matt_E]

How much time you have between mixing and the stuff expanding depends on temperature. The warmer it is, the less time you have.

 

[yamaslut]

I just used "great stuff"... it's cheap and quick

don't even tell me it will absorb water, cause it doesn't matter

 

[T-bone]

I just used "great stuff"... it's cheap and quick

don't even tell me it will absorb water, cause it doesn't matter

it will absorb water............................................but it doesn't matter:wink:

 

[yamaslut]

it will absorb water............................................but it doesn't matter:wink:

no!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

i said don't tell me that:frown:

 

[hangtime]

How much time you have between mixing and the stuff expanding depends on temperature. The warmer it is, the less time you have.

Well I mixed in my garage during the winter which is about 55 at best and the $hit exploded out of my container before I could even walk over to the SJ .It's tough to clean off your hands too so wear some latex gloves .:banghead:

 

[Matt_E]

Yes, it's sticky. What temperature were the two liquids at? (Same as ambient?)

 

[hangtime]

Yes, it's sticky. What temperature were the two liquids at? (Same as ambient?)

Yup ,maybe I shook it too hard .4 oz of each and it exploded.
:27: :27: :27: :27: :27: :27: I just sent LegdragPete the rest of what I had :haha:

 

[Matt_E]

:biggrin: Strange, that's for sure. The instructions on the two-part urethane foams say it's temperature dependent - and that's been my personal experience, as well.

In fact, when I refoamed my Superjet in Phil's garage in January, it was so cold that it took a long time to expand - so we put subsequent batches in the microwave :biggrin: (un-mixed, of course) to heat it up. Worked a lot better.

 

[Idok]

I just used "great stuff"... it's cheap and quick

don't even tell me it will absorb water, cause it doesn't matter

you didnt refoam the whole ski though, right???? I think that if you just hollow out enough for the hold the great stuff would be just fine........

NO foam will absorb water if it doesnt leak in the first place........but if the job isnt sealed properly than ANYTHING will get wet...

 

[beachedflunkey]

While we are on the foam subject, I just glassed over the factory foam hole when I put in my one-way valve. Should I bother topping off the other factory hole and glassing it to ensure a good seal or is tape generally fine?

 

[HAMMER]

WOW
thats some good stuff to know
I'll mix in 8oz increments
Foam mix is in the house, ski is in the gayrage (hehe) wich is about 50 deg f
did you mix by hand or use a dirll w/ mixer attachment?.I'm goin to give it the ole hand stirrerupper method.
foamin tonight or tomorrow night i'll let ya know how it went
thanks to everyone puttin in thier 2 cents

HAMMER