I would lean towards epoxy but you would end up MUCH better off going to the
big box and buying some fresh "blueboard" foam. The white stuff is expanded
and absorbs moisture. Blueboard is extruded and does not so it is strongly
recommended for marine insulation. Blueboard also has a higher initial R
value (4.9 vs. 3.85)

Also it is best to use the largest pieces you can. The raw edges of the
foam will fill with the adhesive resulting in a heat path. For less than
$30 you can buy enough blueboard to cover a refrigerator box in three or
four layers.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"NE Sailboat" wrote in message
news:Gjygh.3$WS4.0@trndny07...
The styrofoam ,, you know the stuff the coolers are made of. The coolers
you buy at like a 7 / 11. The cheap coolers.

Anyway,, these coolers break . And when they break what to do ? Mostly I
will see them on the side of the road or something.

Now ::: to the question. I want to line an icebox area of my boat with
insulation. I got to thinking ?? I probably have a couple or three or
four of the cheap styrofoam coolers in my garage. Some have no cover,
some are cracked ..

I figure I can cut the strofoam and piece it together to fit the contour
of the icebox. But, how do I "stick" the strofoam pieces together.

What kind of glue, whatever will hold cut pieces of styrofoam coolers
together?