Low GWP Heat Transfer Fluid - DuPont™ Vertrel® Sinera™ heat transfer fluid is a clear, colorless, non-flammable, thermally stable fluorinated fluid developed in response to worldwide market demand for a low environmental impact heat transfer fluid, brine coolant, dielectric fluid and test fluid. The fluid has a boiling point of 110 °C, zero ozone depletion potential (ODP) and a very low global warming potential (GWP) of less than 10 (100-yr ITH). Vertrel® Sinera™ is appropriate to replace PFCs, PFPEs, HFEs, HFCs and HCFCs in heat transfer applications. The favorable characteristics of the product viscosity and density enable superior heat transfer performance