Old 02-09-2019, 12:11 AM
Join Date: Feb 2001
Location: Australia
Posts: 46

I have a same sized Kevlacat. I replaced the timber floor a year ago with what they call Coosa board, a composite polyurethane foam reinforced with layers of fibreglass. I also filled all the hull compartments with Marine Buoyancy Foam POLYAIR EPE 5. Each sheet is 2000 mm x 1000 mm x 50 mm and 100 litres in volume. I cut the sheets and fitted them neatly into the cavities. The weight of a cubic meter of EPE is about 32 kg, so effectively providing 970 kg of buoyancy. I used around 1.3 cubic meters.I also fitted stainless steel inspection ports on the floor above each cavity. I might add, that when the floor was removed, the hull was still rigid. I personally would not remove any bulkheads.Specialized Structural Panels - Coosa Composites
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