Foam, how much and best place to get it . . .

[Bobobob]

Good day everyone! It's been awhile. I've finally built up enough courage to lift the deck in my boat ( 1981 Sea Nymph CC-171) and discovered exactly what I suspected. The previous owner had replaced the deck with Pressure treated plywood - "A no no" and in their infinite wisdom chose to not do anything with the foam.

My inspection has found; so far, complete saturation of the foam in the stern and I suspect it will be no different all the way to the bow.

So the big question is how much 2 part foam do I need as I see it only comes in small quantities ie: 2 Quarts and maybe 6 Quarts.

The second part is where is the best place to get it, I am in Canada.

And is the price pretty standard or is there a more bang for your buck product?

I have seen the cut closed cell foam boards used and the thought has crossed my mind however I have heard it is not as quiet, safe, and structural as poured 2 part foam. As with most I am looking for the least expensive option however I dislike doing things sub par.

If anyone could help me out with the base calculations as to how much 2 part I need, or a rough estimate, it would be greatly appreciated.

I am also open to other options as long as it's a quality alternative.

I take my boat out on some small - mid size lakes however it does see Lake Superior on occasion, so Safety first.

Thanks in advance

 

[chevymaher]

Mine is a 17 foot listed 17.7 foot actual boat. I used 28 cubic feet of a 40 cubic foot kit. I did under the deck all of it and the sides up 2 foot or From the transom to 14 foot forward. I used US Composits in florida. Figure the cost of the medium kit and I was at the price of the large kit. minus a few bucks. I was overkill I guess I was looking for quiet strong and no doubts floating if it got water in it. I used alot more than it had factory and it is worth it. I did my math and made sure there was a large safety margin.

 

[Russ61]

Was curious about having spray in house foam insulation sprayed in

 

[Chris1956]

There is nothing wrong with using pressure treated plywood for the deck. The mistake was not fiberglassing over it to waterproof it. That is one reason the foam is wet. Any plywood that is not fiberglassed will leak water into the foam and ruin it.

Source some marine pour in foam over the internet, and install it.

 

[Scott Danforth]

There is nothing wrong with using pressure treated plywood for the deck. The mistake was not fiberglassing over it to waterproof it. That is one reason the foam is wet. Any plywood that is not fiberglassed will leak water into the foam and ruin it.

Source some marine pour in foam over the internet, and install it.

its an aluminum boat, any of the chemicals in the PT get to the aluminum and you have corrosion.

 

[Scott Danforth]

Was curious about having spray in house foam insulation sprayed in

first, stop hijacking threads.

second, spray in house insulation foam is not marine closed-cell foam

 

[Chris1956]

Gee, does it say aluminum boat anywhere? That is important to know.

Pressure treated plywood is bad for aluminum boat decks, but fine for fiberglass boat decks.

 

[kcassells]

You need to locate whats local to you. Kananada has some whacked taxes for shipping.

 

[Bobobob]

Gee, does it say aluminum boat anywhere? That is important to know.

Pressure treated plywood is bad for aluminum boat decks, but fine for fiberglass boat decks.

Sorry I didn't clarify, yes it is an Aluminum boat.

 

[Bobobob]

Thanks for the input. I'm having some difficulty locating large enough quantities of 2 part foam here in Canada, anyone have a line on it? I see there are 80 Lbs kits here http://www.uscomposites.com/foam.html however in these current times shipping Internationally may be an issue . . . .

 

[Scott Danforth]

find a fiberglass shop in canada near you that sells resins and cloth. they also have foam on the shelf

the EPA charge is what adds shipping cost.

would kind of help to know where in the 3.8 million square miles of Canada that you are located....... some of your Canuck boating brethren can then help with where they get the glassing supplies.

 

[Bobobob]

find a fiberglass shop in canada near you that sells resins and cloth. they also have foam on the shelf

the EPA charge is what adds shipping cost.

would kind of help to know where in the 3.8 million square miles of Canada that you are located....... some of your Canuck boating brethren can then help with where they get the glassing supplies.

The land of the big goose, Wawa Ontario. Middle of no where. Only a 2.5 hour drive from the Michigan boarder.

 

[Bobobob]

Hey guys, would 10 Gallons of 2lbs foam be enough for the Average 17' boat? I was able to source some up here in Canada and 10 Gallons seems to be the largest amount I can get.

 

[chevymaher]

That is what I got. It is a 2 part mix. 5 gallon bucket and 5 One gallon cans. I had less than 2 gallons of the cans left. so under 4 gallons total. That is plenty. You be having it for all kinds of other things in the future. It comes in handy.

 

[JASinIL2006]

The land of the big goose, Wawa Ontario. Middle of no where. Only a 2.5 hour drive from the Michigan boarder.

I bet someplace in the Soo would have it....