Whibco’s thermal sand is specialty blended product that meets the needs of electrical utilities looking for a non-corrosive, non-reactive material that demonstrates the thermal resistivity required for use in high voltage applications. Whibco is an approved producer of Thermal sand for both Peco Electric and Consolidated Edison Utilities have used our Thermal sand as a replacement for flowable fill. On projects where access is needed on a continuing basis, the material can be dug out by hand to continue on with the next day’s work.