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EXPOL provides high performing solid insulation solutions for both interior and exterior masonry wall.

EXPOL Platinum Board (Graphite Infused EPS – Expaned Polystyrene) is best suited for interior applications, while EXPOL-X (XPS – Extruded Polystyrene) with its water-tight qualities is designed more for exterior applications.

Also, see Cladding and Retaining Wall solutions for more exterior options.

Product could be damaged and warranty will be void.


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EXPOL Platinum Board Masonry Wall Insulation.

EXPOL-X Masonry Wall Insulation

The Products

EXPOL masonry wall solutions utilise cutting edge innovations in solid insulation boards. Both products achieve substantially higher R-values (for the relative thickness) than other insulating materials.

EXPOL Platinum Board Interior (Graphite Infused EPS – Expanded Polystyrene) is supplied in full sheets or cut to suit. EXPOL Platinum Board (Graphite Infused EPS – Expanded Polystyrene) is a premium product which achieves superior R-values relative to thickness.
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EXPOL-X  (XPS – Extruded Polystyrene) is available in full sheets only. EXPOL-X (XPS – Extruded Polystyrene) is highly water-resistant and has an extremely high compressive strength.
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Installation Instructions

EXPOL Platinum Board Interior (Graphite Infused EPS – Expanded Polystyrene)
EXPOL-X  (XPS – Extruded Polystyrene)

When insulating masonry walls the insulation should be cut accurately to create a neat fit between the timber batons or strapping. It is also important to make sure that the insulation is maximized by using the correct thickness; this is determined by the thickness of the timber batons or strapping. The panels can be spot glued in place until the lining materials are fixed.

Care should be taken to ensure that there is no contact between the polystyrene and any electrical wiring.

System Components

EXPOL Wireguard

EXPOL WireGuard

EXPOL WireGuard is a waxed paper strip used to separate exposed electrical cables from EXPOL insulation. Expanded Polystyrene in some cases reacts with the plasticiser and degrades the elastic properties of some electrical cables over a prolonged period.

EXPOL Styro-Fix Construction Adhesive

Styro-FIX Construction Adhesive

Styro-FIX is an advanced single component polyurethane-based construction adhesive.

This powerful adhesive is developed especially for the construction industry and will bond most types of construction materials including timber (damp and dry), concrete, plasterboard, polystyrene and many other porous and non-porous substrates.

It bonds expanded polystyrene to most surfaces, delivers strong adhesion and rapid cure, it is gun-able and non-drip.



All products and grades of Expanded Polystyrene supplied by EXPOL for masonry walls comply with manufacturing standard AS 1366 Part 3 1992.

For further, detailed information on all products contact EXPOL 0800 86 33 73

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