What resin and adhesive for pink foam insulation board?

Badlatitude

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Whats the best way to bond foam board togather and the proper resin to glass over it?
 

El Mar

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Not if you paint them first...

Sheet rock screws and some spray foam for your radiuses have been used in the past with success. Although the yellow foam seems to take the resin just fine without melting like the Wicked Witch
 

Badlatitude

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Epoxy like West system correct? Figures I have plenty of boatyard polyester resin on hand and no epoxy resin LOL

Ive never seen yellow at "Home Desperate". Just pink and blue.
 

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The yellow normally has a foil facing on both sides. Celotex is the brand we get

Celotex_Foil_%20Faced_2.jpg
 

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No, the foil stays. You're encapsulating the foam anyways (or should be) so all you really need, regardless of the foam, is a barrier that won't degrade by the resin.
 
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Has to be epoxy.

Polyester resin will eat the foam.


actually the mekp eats the foam (stryfoam derivatives)


dont have to worry about it with polyurethane foams and pvc foams.


JUST BE WARNED home depot pink foam has NO density to it and will provide no structural support nor is its sheer and peel strenght worth a shit
 

Badlatitude

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actually the mekp eats the foam (stryfoam derivatives)


dont have to worry about it with polyurethane foams and pvc foams.


JUST BE WARNED home depot pink foam has NO density to it and will provide no structural support nor is its sheer and peel strenght worth a shit

Just want it for insulation.
 

BillD

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No, the foil stays. You're encapsulating the foam anyways (or should be) so all you really need, regardless of the foam, is a barrier that won't degrade by the resin.

Travis,

The Celotex board you use (the pic you posted)......do you use it for "structural pieces" in lieu of say Divinycell H80 or Nidacore?

Can you use this product for longitudinal or transverse stringers for deck support? etc.

Forward cabin pieces for upright walls of an enclosed head?, vberths?

Explain where you use this stuff when building a boat.

Also, any pics of you "foam spray" radius edges ??

Thanks,

Bill
 

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Travis,

The Celotex board you use (the pic you posted)......do you use it for "structural pieces" in lieu of say Divinycell H80 or Nidacore?

Can you use this product for longitudinal or transverse stringers for deck support? etc.

Forward cabin pieces for upright walls of an enclosed head?, vberths?

Explain where you use this stuff when building a boat.

Also, any pics of you "foam spray" radius edges ??

Thanks,

Bill

Insulation only. Maybe for an engine box if one was so inclined. Used for spacers between tanks (isolation zone so if someone decided to plunge a screw through something there would be 2 inches of "safety" before ruining a tank), fix boxes, etc. Nothing structual. I am sure one could build up a washrail or some other wearing surface for a low-cost filler that would need to be replaced down the line. Chances are that I would just use an externally fastened piece of PVC though. It's whatever the owner wanted ultimately, if it's a molded look that you're after, sure it can be used. But the strength would come from the laminate, not the filler medium.

As far as the spray foam, it's just a filler, squirt some in and let it set up, then use some hand sand paper - say 36 grit - to shape it quick and easy.
 


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