GALDEN® HT 200

Econtrol Devices offers GALDEN® HT 200, a perfluoropolyether (PFPE) dielectric heat transfer fluid from the GALDEN HT range by Solvay/Syensqo.

GALDEN HT 200 is an inert, nonflammable liquid designed for industrial heat transfer applications. With a boiling point of 200°C, the fluid combines dielectric properties, high density, chemical resistance, and high heat resistance.

According to the manufacturer's Technical Data Sheet, the GALDEN HT range includes fluids with boiling points from 55°C to 270°C. The range is developed for demanding applications in semiconductor manufacturing, chemical processing, pharmaceutical operations, electrical equipment cooling, and other industrial heat transfer systems.

GALDEN HT 200 has a reported kinematic viscosity of 2.40 cSt, density of 1.79 g/cm³, and thermal conductivity of 0.065 W/m·°C. These properties are documented in the manufacturer's technical information.

Key Features of GALDEN HT 200

• PFPE Heat Transfer Fluid: Part of the GALDEN HT perfluoropolyether product range.

• Dielectric Fluid: Designed for industrial heat transfer applications involving electrical equipment.

• Boiling Point: 200°C.

• Nonflammable: Confirmed in the manufacturer's Safety Data Sheet.

• Chemical Resistance: Identified as a product feature in the Technical Data Sheet.

• High Heat Resistance: Listed among the product's features.

• High Density: 1.79 g/cm³.

• Kinematic Viscosity: 2.40 cSt.

• Thermal Conductivity: 0.065 W/m·°C.

• Specific Heat Capacity: 0.23 cal/g·°C at 25°C.

• Dielectric Strength: 40 kV at a 2.54 mm gap.

• Low Water Solubility: Less than 10 wppm.

• Colorless and Odorless: Confirmed in the manufacturer's Safety Data Sheet.

• Commercially Active Product: Identified as active in the manufacturer's Technical Data Sheet.

Applications of GALDEN HT 200

The manufacturer's Technical Data Sheet and supplied product listing identify GALDEN HT 200 for industrial heat transfer applications.

1. Semiconductor Manufacturing

GALDEN HT 200 is included in the manufacturer's range of heat transfer fluids for semiconductor manufacturing.

The supplied product screenshot also identifies etchers, physical vapor deposition (PVD), chemical vapor deposition (CVD), and ion implanters among its application areas.

2. Direct Immersion

The product listing identifies direct immersion as an application of GALDEN HT 200.

3. Vapor Phase Heating

The manufacturer's Technical Data Sheet identifies vapor phase heating among the intended applications of GALDEN HT fluids.

4. Transformer and Supercomputer Cooling

GALDEN HT 200 is listed for transformer and supercomputer cooling applications.

5. Recirculating Chillers

The manufacturer identifies recirculating chillers among the applications of the GALDEN HT range.

6. Chemical Industry

GALDEN HT 200 is listed for heat transfer applications in chemical industry processes.

The supplied product information also identifies demanding chemical operating conditions among the application areas.

7. Pharmaceutical Industry

The manufacturer identifies pharmaceutical industry applications within the GALDEN HT range.

The product listing also mentions freeze dryers.

Suitability for specific pharmaceutical processes should be evaluated according to the manufacturer's technical guidance and applicable requirements.

8. Electrical Equipment

The supplied product listing identifies the following electrical applications:

• Transformer and Supercomputer Cooling

• Power Supplies

9. Nuclear Industry

The manufacturer's Technical Data Sheet includes the nuclear industry among the application areas of GALDEN HT fluids.

The product listing specifically references UF6 production.

10. Radar Equipment

The supplied product screenshot identifies radar among the industrial application areas.

Technical Specifications of GALDEN HT 200

The following values are taken from the manufacturer's GALDEN HT200 Technical Data Sheet.

The figures above are typical manufacturer-reported values determined at 25°C unless otherwise specified. They are not guaranteed specifications.

Chemical Composition

According to the manufacturer's Safety Data Sheet (Version 4.00, January 15, 2026), GALDEN HT 200 is a perfluorinated polyether substance.

The Safety Data Sheet identifies GALDEN HT 200 as a substance rather than a mixture. It also notes that the specific chemical identity and/or exact composition percentage has been withheld as a trade secret.

Heat Transfer Performance

Thermal Characteristics

The manufacturer's Technical Data Sheet reports:

• Boiling Point: 200°C

• Pour Point: -85°C

• Heat of Vaporization: 15.0 cal/g

• Specific Heat Capacity: 0.23 cal/g·°C

• Thermal Conductivity: 0.065 W/m·°C

• Coefficient of Expansion: 0.0011 cm³/cm³·°C

These are the typical physical and thermal characteristics reported for GALDEN HT 200.

Chemical and Thermal Stability

The manufacturer identifies chemical resistance and high heat resistance as product features.

The Safety Data Sheet also states that GALDEN HT 200 is stable under recommended storage conditions and that no dangerous reactions are known under normal conditions of use.

Temperature Considerations

The GALDEN HT range covers boiling points from 55°C to 270°C.

The manufacturer identifies end-use temperatures up to 290°C for the broader product range.

For GALDEN HT 200 specifically, the reported boiling point is 200°C, while the Safety Data Sheet reports a decomposition temperature above 290°C.

The range-wide end-use temperature statement should not be interpreted as a guaranteed operating temperature for every GALDEN HT grade.

Electrical Properties

GALDEN HT 200 is described as a dielectric heat transfer fluid.

The manufacturer's Technical Data Sheet reports:

These are typical manufacturer-reported electrical values.

Material Compatibility

The manufacturer's Technical Data Sheet identifies chemical resistance as a feature of GALDEN HT 200.

Material Compatibility Considerations

The supplied Technical Data Sheet does not include a detailed compatibility table for individual metals, plastics, or elastomers.

Compatibility should therefore be evaluated for the specific materials and operating conditions of the intended application.

Incompatible Materials

The manufacturer's Safety Data Sheet identifies:

• Alkali Metals

• Lewis Acids (Friedel-Crafts) above 100°C

• Aluminum and Magnesium in Powder Form above 200°C

The SDS also notes that metals may promote decomposition and lower the decomposition temperature under certain conditions.

Available Packaging Sizes

The supplied product listing identifies the following options:

Packaging availability should be confirmed when requesting a quotation.

Storage and Handling

GALDEN HT 200 is intended for industrial use only.

Storage Guidelines

According to the manufacturer's Safety Data Sheet:

• Keep the fluid in properly labeled containers.

• Store away from heat and sources of ignition.

• Keep away from combustible materials.

• Keep away from incompatible substances.

• Use polyethylene containers as identified in the Safety Data Sheet.

Handling Precautions

• Ensure adequate ventilation.

• Use appropriate personal protective equipment.

• Avoid overheating to prevent thermal decomposition.

• Take precautions against electrostatic charge buildup.

• Ensure equipment is electrically grounded before transfer operations.

• Clean and dry piping circuits and equipment before use.

• Follow standard industrial hygiene practices.

Safety Information

According to the manufacturer's Safety Data Sheet dated January 15, 2026, GALDEN HT 200 is not classified as hazardous under the OSHA Hazard Communication Standard (29 CFR 1910.1200).

The manufacturer also identifies the fluid as nonflammable and non-explosive.

High-Temperature Precautions

The Safety Data Sheet reports a decomposition temperature above 290°C.

Overheating or exposure to fire may produce hazardous decomposition products, including:

• Gaseous Hydrogen Fluoride (HF)

• Fluorophosgene

Personal Protective Equipment

The manufacturer recommends:

• Chemical-resistant gloves

• Safety glasses with side shields

• Protective work clothing

• Appropriate respiratory protection where necessary

When splashing is likely, tightly fitting safety goggles and a chemical-resistant apron are recommended.

Environmental and Regulatory Information

Chemical Inventory Information

The manufacturer's Safety Data Sheet identifies GALDEN HT 200 on the following chemical inventories:

• United States TSCA Inventory

• Canadian Domestic Substances List

• Australian Inventory of Industrial Chemicals

• Korean Existing Chemicals Inventory

• China's Existing Chemical Substances Inventory

• Applicable Japanese Chemical Inventories

• Philippines Inventory of Chemicals and Chemical Substances

• New Zealand Chemical Substances Inventory

• Taiwan Chemical Substance Inventory

The Safety Data Sheet also provides specific conditions regarding Japanese importation and European REACH compliance.

Environmental Precautions

The manufacturer states that GALDEN HT 200 should not be released into the environment.

The fluid should not enter drains, surface water, or soil.

No verified product-specific global warming potential or ozone depletion potential figure is provided in the supplied documents.

Recycling and Disposal

The manufacturer's Safety Data Sheet provides the following disposal guidance.

Disposal Guidelines

• Do not dispose of the fluid into drains, soil, or water bodies.

• Follow applicable local, regional, and national disposal regulations.

• Incineration may be used where permitted by local regulations.

• Incineration facilities must be equipped to neutralize or recover hydrogen fluoride.

• Empty containers may be landfilled where local regulations permit.

Fluid Reclamation Information

The supplied product screenshot includes information about TMC Industries' reclamation services for used fluorinated and PFPE fluids.

This service information relates to TMC Industries and should not be interpreted as a reclamation guarantee provided by Econtrol Devices.

GALDEN HT 200 – Product Inquiries at Econtrol Devices

Econtrol Devices provides product information and quotation assistance for GALDEN® HT 200 Dielectric Heat Transfer Fluid.

For product specifications, packaging options, technical documentation, and quotations, contact Econtrol Devices.

Safety Information: GALDEN HT 200 is intended for industrial use only. Although it is not classified as hazardous under OSHA GHS, overheating may release hazardous decomposition gases. Review the manufacturer's current Technical Data Sheet, Safety Data Sheet, and product label before handling, storing, or using the fluid.