BioFROST Eco is a concentrated biobased propylene glycol heat transfer fluid formulated to safely provide optimum heat transfer, freeze protection and corrosion protection. THIS PRODUCT DOES NOT CONTAIN ETHYLENE GLYCOL. Designed for industrial and environmentally sensitive antifreeze, coolant/heat transfer and secondary refrigerant applications. BioFrost Eco can be used in several industrial heat transfer/antifreeze applications such as Closed Loop Systems, Chillers, Geothermal, Floor Heating Systems and Hydrostatic / Pressure Testing.