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DOWFROST

DOWFROST is a line of inhibited glycol-based heat transfer fluids manufactured by Dow. The series includes both propylene glycol and ethylene glycol formulations, supplied as concentrates or pre-diluted solutions for closed-loop heating and cooling systems. DOWFROST fluids are formulated with corrosion inhibitors to protect common metals of construction—such as steel, copper, brass, and aluminum—in HVAC, process heating, and industrial cooling loops. The propylene glycol variants are available in food-grade and non-food-grade versions, with the food-grade options intended for systems where incidental contact with food or potable water is possible. Ethylene glycol versions are also offered for applications where toxicity is not a concern and higher thermal efficiency is required. These fluids are typically used in systems operating from -50°C to 150°C, depending on concentration and system pressure. They are available in concentrations ranging from 25% to 96%, with the higher concentrations intended for dilution on-site to meet specific freeze protection and heat transfer requirements. Packaging options include 5-gallon pails, 55-gallon drums, and 265-gallon totes. 3G Electric supplies the DOWFROST line as part of its industrial equipment portfolio, offering 29 SKUs that cover both propylene and ethylene glycol variants, food-grade and non-food-grade, and multiple concentration levels. The product range includes clear and blue-dyed formulations; blue dye is added for leak detection. 3G Electric provides logistics support for global delivery, including documentation for customs clearance and handling of hazardous materials where applicable. Technical support is available to assist with fluid selection based on system parameters such as freeze point, material compatibility, and required inhibitor levels. For procurement specialists, 3G Electric maintains inventory and can coordinate shipments to meet project schedules. The DOWFROST line is manufactured in the USA, and country of origin may be subject to change based on supply chain factors. 3G Electric does not manufacture DOWFROST fluids; it distributes them as part of its catalog of industrial components. This profile is intended to provide factual information for engineers and buyers evaluating heat transfer fluids for closed-loop systems.

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About DOWFROST

DOWFROST is a line of inhibited glycol-based heat transfer fluids manufactured by Dow. The series includes both propylene glycol and ethylene glycol formulations, supplied as concentrates or pre-diluted solutions for closed-loop heating and cooling systems. DOWFROST fluids are formulated with corrosion inhibitors to protect common metals of construction—such as steel, copper, brass, and aluminum—in HVAC, process heating, and industrial cooling loops. The propylene glycol variants are available in food-grade and non-food-grade versions, with the food-grade options intended for systems where incidental contact with food or potable water is possible. Ethylene glycol versions are also offered for applications where toxicity is not a concern and higher thermal efficiency is required. These fluids are typically used in systems operating from -50°C to 150°C, depending on concentration and system pressure. They are available in concentrations ranging from 25% to 96%, with the higher concentrations intended for dilution on-site to meet specific freeze protection and heat transfer requirements. Packaging options include 5-gallon pails, 55-gallon drums, and 265-gallon totes. 3G Electric supplies the DOWFROST line as part of its industrial equipment portfolio, offering 29 SKUs that cover both propylene and ethylene glycol variants, food-grade and non-food-grade, and multiple concentration levels. The product range includes clear and blue-dyed formulations; blue dye is added for leak detection. 3G Electric provides logistics support for global delivery, including documentation for customs clearance and handling of hazardous materials where applicable. Technical support is available to assist with fluid selection based on system parameters such as freeze point, material compatibility, and required inhibitor levels. For procurement specialists, 3G Electric maintains inventory and can coordinate shipments to meet project schedules. The DOWFROST line is manufactured in the USA, and country of origin may be subject to change based on supply chain factors. 3G Electric does not manufacture DOWFROST fluids; it distributes them as part of its catalog of industrial components. This profile is intended to provide factual information for engineers and buyers evaluating heat transfer fluids for closed-loop systems.

Common Applications

  • HVAC — DOWFROST propylene glycol 30% for closed-loop chiller systems requiring freeze protection
  • Food processing — DOWFROST food-grade propylene glycol 35% in process cooling where incidental contact is possible
  • Pharmaceutical manufacturing — DOWFROST food-grade propylene glycol 70% for temperature control in clean environments
  • Industrial process cooling — DOWFROST ethylene glycol 50% for high-efficiency heat transfer in closed loops
  • Solar thermal systems — DOWFROST propylene glycol 50% for freeze protection and corrosion inhibition in collector loops
  • Snow melting — DOWFROST propylene glycol 40% in hydronic snow melt systems for driveways and walkways

Frequently asked questions

Common questions about DOWFROST from 3G Electric.

What is the difference between DOWFROST propylene glycol and ethylene glycol heat transfer fluids?

DOWFROST propylene glycol fluids are generally used where incidental contact with food or potable water is possible, as propylene glycol has lower toxicity than ethylene glycol. Ethylene glycol versions offer higher thermal efficiency and are typically used in systems where toxicity is not a concern. Both types contain corrosion inhibitors and are available in various concentrations. Selection depends on application requirements, system materials, and regulatory considerations.

What concentration of DOWFROST should be used for freeze protection?

The required concentration depends on the desired freeze point. For example, a 30% propylene glycol solution typically provides freeze protection to about -13°C (9°F), while a 50% solution can protect to approximately -33°C (-27°F). DOWFROST is available in concentrations from 25% to 96%; higher concentrations are intended for dilution with water on-site to achieve the target freeze point. Always consult the manufacturer's guidelines for specific freeze point data.

Is DOWFROST food-grade propylene glycol safe for use in systems with incidental food contact?

DOWFROST food-grade propylene glycol fluids are formulated for use in closed-loop heating and cooling systems where incidental contact with food or potable water may occur. They meet relevant food safety regulations, but they are not intended for direct food contact or consumption. The food-grade designation applies to the fluid composition; system design should prevent leakage or cross-contamination. Verify compliance with local regulations for your specific application.

What packaging sizes are available for DOWFROST heat transfer fluids from 3G Electric?

3G Electric supplies DOWFROST fluids in 5-gallon pails, 55-gallon drums, and 265-gallon totes. The available packaging depends on the specific SKU and concentration. For example, SKU 879FE1 is a 5-gallon pail of 25% propylene glycol, while SKU 878PF8 is a 265-gallon tote of 70% food-grade propylene glycol. Contact 3G Electric for current inventory and lead times.

How does 3G Electric support the DOWFROST product line?

3G Electric distributes DOWFROST heat transfer fluids and provides logistics support for global delivery, including customs documentation and hazardous materials handling where required. Technical assistance is available to help select the appropriate fluid based on system parameters such as freeze point, material compatibility, and inhibitor requirements. 3G Electric maintains inventory across multiple SKUs and can coordinate shipments to meet project schedules.

What are the typical applications for DOWFROST heat transfer fluids?

DOWFROST fluids are used in closed-loop heating and cooling systems across various industries, including HVAC, food processing, pharmaceutical manufacturing, and industrial process cooling. They are suitable for systems requiring freeze protection, corrosion inhibition, and reliable heat transfer. Specific applications include radiant heating, snow melting, solar thermal systems, and process temperature control. The choice between propylene and ethylene glycol depends on toxicity and performance requirements.