Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow DOWFROST Propylene Glycol Antifreeze

Dow DOWFROST Propylene Glycol Antifreeze is a non-toxic, inhibited heat-transfer fluid from Dow’s DOWFROST series. Formulated with USP-grade propylene glycol, it provides freeze protection down to −50°C and corrosion inhibition for HVAC, solar, and industrial systems. Compatible with common metals and elastomers, it meets ASTM D6471 and NSF/ANSI 60 standards for safety and performance.
  • dow dowfrost propylene glycol antifreeze_080b0884
  • dow dowfrost propylene glycol antifreeze_080b0884

Features Of Dow DOWFROST Propylene Glycol Antifreeze

  1. Non-toxic, USP-grade propylene glycol base — safe for use in food processing, pharmaceutical, and HVAC systems where incidental contact with potable water or consumables may occur.

  2. Corrosion-inhibited formulation with proprietary additives that protect ferrous and non-ferrous metals, including aluminum, copper, solder, and cast iron.

  3. Low-viscosity fluid ensures efficient heat transfer and pumpability across a wide temperature range (–58 °C to 135 °C).

  4. Biodegradable and environmentally compatible — meets OECD 301B biodegradability standards.

  5. Pre-mixed, ready-to-use 50/50 aqueous solution — eliminates field mixing errors and ensures consistent freeze/boil protection.

Typical Applications Of Dow DOWFROST Propylene Glycol Antifreeze

  1. Food and beverage processing plant cooling systems (e.g., jacketed tanks, plate heat exchangers).

  2. Pharmaceutical clean steam condensate return loops and process chillers.

  3. Commercial and institutional HVAC secondary coolant loops, especially in hospitals, schools, and office buildings.

  4. Solar thermal collector systems requiring non-toxic, high-temperature stability.

  5. Ice rink refrigeration brine circuits where low toxicity and material compatibility are critical.

Specifications Of Dow DOWFROST Propylene Glycol Antifreeze

Chemical TypePropylene glycol–based inhibited antifreeze concentrate (pre-diluted to 50% v/v)
Product FormLiquid, ready-to-use solution
AppearanceClear, colorless to pale yellow liquid
Freeze Point (ASTM D1177)–37 °C (–35 °F)
Boil Point (ASTM D1120, 1 atm)106 °C (223 °F)
pH (25 °C, ASTM D1287)9.0 – 10.0
Density (20 °C, ASTM D1298)1.065 – 1.075 g/cm³
Primary ApplicationsNon-toxic closed-loop cooling, heating, and heat transfer systems


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