DOWCAL™ 200 is a propylene glycol–based heat transfer fluid with low acute toxicity for applications where toxicity is a concern for temperature control between −50°C and 175°C.
DOWCAL™ 200 heat transfer fluid is a high-quality inhibited propylene glycol–based solution from Dow Chemical for a range of thermal transfer applications. DOWCAL™ 200 is low in acute oral toxicity and contains a specially formulated inhibitor package that helps prevent the corrosion of materials common in HVAC construction, ground source heat pumps, solar panels, food and beverage processing, and other systems with metals prone to corrosion.
Product type: Propylene glycol–based fluid
Propylene glycol composition: 92 wt%
Inhibitors and water composition: 8 wt%
Appearance: Colorless
Density (20°C): 1.045–1.055 g/cm³
pH of solution: 7.2–7.6 (50% vol. in water)
Reserve alkalinity: 10.0 mL
Primary Chemistry: Propylene Glycol
Improved corrosion protection for aluminum alloys
Suitable for use at a minimum 20% concentration for high and low temperatures
Long lifetime
Low acute oral toxicity
Free of nitrite, borax, and CMR Available in various package sizes and blends
Instability between thermal fluid and hard water or tap water
Incompatibility with elastomers, O-rings, or seals, resulting in leaking
Inefficient thermal fluid lifespan
DOWCAL™ 200 heat transfer fluid can be used in a range of equipment types, including but not limited to the following:
Single-fluid process heating and cooling
Boilers, closed-loop, and water-based heating and air conditioning systems (HVAC) where propylene glycol-based fluids are preferred or required
Food industry applications within a wide range of temperatures
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