DOWTHERM SR-1 40% heat transfer fluid is an inhibited ethylene glycol that offers effective heat transfer over a wide temperature range: from about -8 °F to 250 °F.
DOWTHERM SR-1 40% heat transfer fluid is a formulation of 95.5 weight percent ethylene glycol and a specially designed package of industrial corrosion inhibitors, that is then diluted with reverse osmosis water by 60%. The fluid is dyed fluorescent pink for leak detection purposes. Solutions in water provide freeze protection to about -8 °F.
Applications include: closed-loop, water-based HVAC, process heating and cooling, industry applications within temperature range, Refrigeration coil defrosting.
Feature: Ethylene glycol-based fluids are less viscous than propylene glycol fluids
Benefit: Results in superior heat transfer efficiency and better low temperature performance
Feature: Wonderful freeze and corrosion protection without significant reduction in heat transfer performance
Benefit: Inexpensive single fluid heat transfer solution
Typical Properties
Color: Flourescent Pink
Freeze Point: -8 °F
Boiling Point: 222 °F
Specific Gravity: 1.1250-1.1350
pH of solution (50% glycol): 9.0 - 10.5
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