Tharwa SandsYour local supplier of Red Granite to Canberra, Sydney and the Southern Highlands
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Thermal Sand

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Thermal Sand is now widely used when installing underground cables to improve performance. Our materials satisfy the thermal and mechanical requirements stipulated by ACTEW for encapsulating the cable pipes. Tharwa Sands Thermal Sand meets ACTEW specifications for thermal conductivity for all electrical cable trenches.

Latest testing certificates here