Open Bath Fluids

Open baths are one of the most challenging applications for heat transfer fluids. Neglecting to account for operational temperatures, adequate ventilation of the bath or the selecting the wrong fluid can lead to big trouble and potential risks to workplace safety.

Why are open baths challenging?

Oxidation is the primary cause of heat transfer fluid degradation in open baths. This happens when the heated fluid comes into contact with air. . The higher the bath’s operating temperature, the more rapid and intense this reaction will be and the faster the fluid breaks down.

Few fluids can withstand these high circumstances for more than a few days; however, Duratherm has developed a range of heat transfer fluids specifically designed for this demanding application – refer to the product chart below.

Ensure Safety

A crucial factor in open bath applications is off-gassing, which may appear as smoke gathering and ascending from the bath. The lighter molecules of the fluid are released during heating; nevertheless, these vapours can be harmful and should not be inhaled, irrespective of the fluid in use. To guarantee a secure work environment, all baths must possess adequate ventilation to shield the operator from the impacts of fumes and off-gassing. It is crucial to acknowledge that when fluid temperatures elevate, off-gassing intensifies; therefore, ensure this is considered while designing and sizing your ventilation system.

So what do I have to do?

The oxidation and off-gassing inherent in open bath applications will severely degrade most heat transfer fluids in a brief timeframe. Recognizing the need of selecting an appropriate product capable of enduring severe conditions, Duratherm has created a comprehensive range of fluids that have demonstrated their safety, cost-effectiveness, and exceptional durability in practical applications. The chart below presents a selection of fluids with diverse qualities. If you are uncertain about the most suitable option, please contact us for assistance.

Confused? Our team is here to assist you.

1-800-446-4910
[email protected]

Our technical support team is available via phone or email to discuss your requirements and potential uses. We’ll take the time to listen to your needs and work with you to find the right solutions.

Browse Other Fluids:

THERMAL FLUIDS | SYSTEM CLEANERS | GLYCOL COOLANTS

Viscosity cSt

Product

Fluid Chemistry

Max Use
Temp

Flash
Point

Smoke
Point

-22°F

68°F

104°F

212°F

392°F

Safety
Data Sheet

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Quote

Duratherm G

Fluid Chemistry: Polyalkylene glycol

Max Use Temp: 500°F

Flash Point: 480°F

Smoke Point: 331°F

Viscosity cSt @-22°F: 5429.06cSt

Viscosity cSt @68°F: 105.2cSt

Viscosity cSt @104°F: 42.1cSt

Viscosity cSt @212°F: 7.6cSt

Viscosity cSt @392°F: 1.95cSt

Safety Data Sheet:

Safety Data Sheet: Download

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Duratherm G-LV

Fluid Chemistry: Polyalkylene glycol

Max Use Temp: 400°F

Flash Point: 358°F

Smoke Point: 275°F

Viscosity cSt @-22°F: 3606.1cSt

Viscosity cSt @68°F: 41.52cSt

Viscosity cSt @104°F: 16.4cSt

Viscosity cSt @212°F: 3.21cSt

Viscosity cSt @392°F: 0.95cSt

Safety Data Sheet:

Safety Data Sheet: Download

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Duratherm G-WS

Fluid Chemistry: Polyalkylene glycol
(water soluable)

Max Use Temp: 500°F

Flash Point: 527°F

Smoke Point: 338°F

Viscosity cSt @-22%°F: 2542cSt

Viscosity cSt @68°F: 124cSt

Viscosity cSt @104°F: 51.91cSt

Viscosity cSt @212°F: 12.4cSt

Viscosity cSt @392°F: 1.45cSt

Safety Data Sheet:

Safety Data Sheet: Download

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Duratherm S

Fluid Chemistry: Polydimethylsiloxan
(silicone)

Max Use Temp: 400°F

Flash Point: 615°F

Smoke Point: 400°F

Viscosity cSt @-22°F: 156.02cSt

Viscosity cSt @68°F: 50.63cSt

Viscosity cSt @104°F: 36.13cSt

Viscosity cSt @212°F: 16.66cSt

Viscosity cSt @392°F: 7.3cSt

Safety Data Sheet:

Safety Data Sheet: Download

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