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EXPOL Platinum Board (Graphite Infused – Premium Expanded Polystyrene Sheet)

Is the ideal product for timber and steel framed buildings and under concrete floor (slab) insulation. The addition of graphite to EPS – expanded polystyrene creates a product that offers one of the most effective forms of interior insulation available.

Resistant to moisture, EXPOL Platinum Board (Graphite Infused – Premium Expanded Polystyrene Sheet) is an excellent choice for wall cavities as it does not allow moisture to transfer from the exterior cladding to interior wall linings.

Where superior R-value, moisture resistance and flexible sizing is required, EXPOL Platinum Board (Graphite Infused – Premium Expanded Polystyrene Sheet) is your best choice. For a cost effective interior insulation, use EXPOL ThermaSlab  (Standard EPS – Expanded Polystyrene) SL Grade.

To see how EXPOL Concrete Floor Insulation products are integrated into the new Building Code Changes introduced 1 May 2023 please see the EXPOL FLOOR / SLAB INSULATION CALCULATOR

EXPOL Platinum Board Sheets
EXPOL Platinum Board Sheets

EXPOL Platinum Board

EXPOL Platinum Board Concrete Floor Insulation

EXPOL Platinum Board Interior Wall Insulation.

EXPOL Platinum Board Masonry Wall Insulation.

EXPOL Skillion Roof Insulation - Platinum Board

The benefits:

  • Delivers far greater thermal performance (R-Value) than conventional (EPS – Expanded Polystyrene) and the thermal performance does not degrade over time.
  • Exceptional rigidity and strength.
  • High water resistance.
  • Conveniently sized sheets available in 20 thicknesses from 10mm to 120mm.
  • Lightweight and to easy cut, handle and install.
  • Eco-efficient using fewer raw materials during processing.
  • Excess product easily recycled in other EXPOL products.

EXPOL Platinum Board Solutions: sheet sizes and recommended Platinum Board to use – EXPOL Platinum Board Interior or EXPOL Platinum Board

   Masonry Walls (Interior)
EXPOL Platinum Board Interior

EXPOL Platinum Board

   Concrete Floors
EXPOL Platinum Board

EXPOL Platinum Board

   Skillion Roof
EXPOL Platinum Board

EXPOL Platinum Board

EXPOL Platinum Board

EXPOL Platinum Board

EXPOL Platinum Board

EXPOL Platinum Board

Product Properties

Refer to the solutions above for recommended Platinum Board or EXPOL Platinum Board Interior.

EXPOL Platinum Board


What is R-Value?

An R-Value is a rating which measures how well insulation can resist heat flow. ‘R’ stands for thermal resistance.

  • R-Value level depends on a number of things such as the type
    of material, its density and thickness.
  • Higher R-Value = Better insulation.

How effective is EXPOL Platinum Board for thermal insulation?

With added graphite, EXPOL Platinum Board gives better thermal performance (R-Value) than other Expanded Polystyrene (EPS) boards.

Made of 98% trapped air, Expanded Polystyrene (EPS) demonstrates excellent thermal insulation properties.

Is EXPOL Platinum Board durable?

The structure of Expanded Polystyrene (EPS) creates block rigidity. Expanded Polystyrene (EPS) does not settle over time, thus ensuring the thermal performance (R-Value) for the life of the building.

Does EXPOL Platinum Board give off toxic fumes?

In the event of a fire, the level of toxicity of EXPOL Platinum Board is no greater than timber.

Is EXPOL Platinum Board water and moisture resistant?

The closed cell construction of Expanded Polystyrene (EPS) ensures it resists any adverse effects of water.

Can I glue the sheets of Platinuim Board to the wall?

Yes, best adhesive to use is Styro-FIX.

Is Platinum Board Recyclable?

Yes it is and at EXPOL we actively recycle polystyrene waste and produce other products with it

Where can I purchase EXPOL Platinum Board from?

Mitre 10, Bunnings, Carters, ITM, PlaceMakers,  TimberWorld, BuildLink and other Nationwide hardware outlets.

Click to visit stockist page   







EXPOL Technical Product Guide


Technical Data Sheet

EXPOL Platinum Board


Building Product Information Sheet



EXPOL products are available at a number of leading building products stores. Find your nearest stockist here.

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