He used half inch blue foam from Lowes, glassed one side and put that side on the inside, then finished the boat and glassed the outside. DCTech has a range of extruded polystyrene (XPS) foam which has been used with great success as a modelling foam for many years.
Our XPS foam is chemically and physiologically inert, it creates no dust and will not support mould or mildew and is non allergenic and is not a known food source to vermin or insects. Cutting and ShapingDue to the homogeneous cell structure and uniform density of our XPS foam, it can be cut accurately and to very close tolerances.

Stationary view of the rippling water flow of the Imperial river in Bonita Springs, Florida.
It also contains a flame retardant additive to inhibit accidental ignition from small fire sources eg., over-heated wires or welding sparks. It is easy to cut and shape with a range of tools including a hotwire cutter, serrated knife, hacksaw, floral knife or X-Acto knife.
Standard board sizes 2500mm (L) x 600mm (W) with various thicknesses ranging from 10mm up to 25mm.

The cell structure of our XPS foam enables it to resits all forms of water and moisture penetration. Some spray paints are safe to use - read the label carefully to determine whether or not it is foam approved.

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