Insulate floor fish coolers on 275 Explorer

[Mark Redmon]

On long trips, the ice in my cockpit fish coolers melts.  Both drains are connected through a macerator and discharge through a side through-hull.  I am considering insulating the boxes so the ice will last at least a day for long trips.  Is there a good aerosol product with good adhesion that will slow the ice melt?
Thanks,
Mark
Melbourne FL

[wingtime]

what about fiberglassing in some blue foam board?

[Mark Redmon]

That's an option, but access to the back of the fish coolers is very limited.