Product Overview

Duratherm S is a silicone-based heat transfer fluid supplied in a 55 gallon drum for industrial heating and cooling systems where oxidation resistance, long service life, and wide operating temperature range are critical.

Product Description

Duratherm S is an ideal heat transfer fluid for applications such as negative pressure mold heaters, annealing tanks, open bath forming, or any processing equipment where oxidation is prevalent and problematic. Duratherm S is silicon-based and resists the effects of oxidation seen with most other heat transfer fluids. High-temperature stability is maintained to 315°C (600°F), this combined with a low-end working temperature of -51°C (-60°F) also makes Duratherm S ideally suited for low-temperature, batch processing applications requiring a single fluid for both heating and cooling. Duratherm S is available in 1 gallon, 5 gallons, or 55 gallons at Xtractor Depot.


Features:

  • Superior oxidation resistance (virtually unaffected)
  • Non-fouling - extremely long life
  • Low odor
  • Non-corrosive
  • Non-hazardous
  • Non-Toxic


Specifications:

  • Maximum temperature: 315°C / 600°F
  • Minimum temperature: -51°C / -60°F
  • Flashpoint: 323°C / 615°


Safety Data Sheet

Technical Data Sheet

MSDS Sheet

Key Features

  • Silicone-based heat transfer fluid designed for oxidation-prone systems and demanding process environments
  • Wide operating range from -51°C / -60°F to 315°C / 600°F for heating and cooling applications
  • Superior oxidation resistance compared with many conventional heat transfer fluids
  • Non-fouling, low-odor, non-corrosive, non-hazardous, and non-toxic formulation
  • 55 gallon drum format for production facilities, processing equipment, and recurring maintenance needs

Common Applications

Manufacturing

Negative pressure mold heaters

Duratherm S supports negative pressure mold-heater systems where oxidation resistance and stable heat transfer performance matter.

Processing

Annealing tanks and open-bath forming

Useful for annealing tanks, open-bath forming, and other processing equipment operating across heating and cooling ranges.

Equipment

Industrial process heating and cooling

A single-fluid option for compatible process equipment requiring both high-temperature stability and low-temperature performance.

Maintenance

Thermal-fluid maintenance and replacement

Supports planned thermal-fluid replacement, service, and maintenance programs for facilities using silicone-based heat transfer fluids.

Handling & Storage

Store Duratherm S in sealed original containers or approved storage, protected from contamination, moisture, and incompatible materials. Follow the product Safety Data Sheet and facility SOPs when transferring, charging, draining, or servicing heat-transfer systems.

Safety Notes

Review the Duratherm S Safety Data Sheet and Technical Data Sheet before use. Confirm system compatibility, operating-temperature limits, PPE requirements, and maintenance procedures before charging or replacing thermal fluid in process equipment.

Download the Specification Sheet

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