Using hull contours as fiberglass mold for cooler

dawhits1

Cadet
Joined
Dec 8, 2011
Messages
21
I have a 14ft livingston with a center console. I'd like to build some coolers into the two hulls that fit snugly in the contours of the hulls and the lids essentially create a flat deck in front of the console.
My anticipated plan is to use a plastic tote, and rigid foam insulation/expanding insulation foam to fill the voids. The tricky part however, is I would like it to be able to lift out so I can spray it down with the hose, or remove if just riding around.

What I would like to do, is use either fiberglass or possibly a plastic to match the interior contours of the hull, set the plastic tote on blocks inside the hull, and fill the rest with foam. My options I have considered are:
Using Painters plastic to line inside of hull, set plastic tote in, spray foam in area between hull and tote, let harden, and lift out and paint with epoxy paint then fiberglass over this, or secure the edges of the painters plastic and just use that as is. This would have clearance issues to be addressed as the foam would be a direct fit in the space and not leave room for fiberglass..
Use Heat moldable ABS Plastic to match hull contours, and insulate tote as above.
OR

Wax the inside of the hull really well, then fiberglass the inside to create the shell and the hope would be to lift it out. This is the idea I like the best, however, not having any experience with fiberglass molds, although the draft angles would all be theoretically possible it still worries me a bit... Any experience or thoughts on doing this??

Here is a similar concept, however I would want mine to be level with the center area instead of raised. (I have the older style livingston that does not have a flat level floor in each hull.
 

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fhhuber

Lieutenant
Joined
Jun 19, 2014
Messages
1,365
Wrap the totes in paper towels then Saran Wrap, garbage bag or similar before pouring the foam. The plastic wrapping may stick to the foam, but you should be able to lift the tote right out.

There's a chance of some of the paper towel sticking too, but that shouldn't present much issue cleaning up the foam surface for the fiberglass.

Now your flotation foam doubles as insulation AND its affixed to the boat... and the tote pops out for easy cleaning.
 
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