This blanket of hollow spheres is ideal for open tanks of water. Reduces thermal losses – Savings of up to 60% can be achieved with a single layer – Increase energy saving & reducing costs. A single layer of spheres covers 91% of the liquid surface trapping air in the gaps which adds to the thermal insulation properties. Reduces steaming – vapour losses reduced by 90%. Reduce vapours & splashing. No impedance to workload.