Also see our Generic Dowfrost HD, QC-35, HERE.
Dowfrost HD Heat Transfer Fluid is a formulation of 94.0 percent propylene glycol and a specially designed package of industrial corrosion inhibitors.
The fluid is dyed a bright yellow to aid in leak detection. Solutions in water provide freeze protection to below -60F and burst protection to below -100F.
Recommended use temperature range: -50F to 325F