Industrial Manufacturing

Application

A superior high performance energy efficient heat transfer fluid suitable for use in all kinds of industrial processes.

About Globaltherm® M

Made from highly refined base stocks, Globaltherm^® M thermal fluid has excellent thermal and oxidation stability allowing operation at high temperatures for extended periods.

The fluid also has efficient thermal conductivity and low viscosity, at the relevant operating temperatures, ensure high heat transfer rates requiring limited pumping energy.

Globaltherm^® M heat transfer fluid provides:

• low vapour pressures at elevated temperatures

• greatly reduced evaporation

• vapour lock and cavitation eliminating the need for high pressure piping and equipment

Used fluid may be disposed of through a number of environmentally acceptable methods such as used oil recycling or heavy fuels burning.

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Parameter	Unit	Code (ASTM / ISO)	Result
Operating Range	°C (°F)	N/A	-10 to 320 (14 to 608)
Appearance	N/A	N/A	Viscous clear-yellow liquid with a mild odour.
Density @ 25°C	kg/m³	ASTM D4052	873
Kin. Viscosity 40°C	mm²/s (cSt)	ASTM D445	29.8
Kin. Viscosity 100°C	mm²/s (cSt)	ASTM D445	4.5
Flash Point PMC	°C	ASTM D93	210
Flash Point COC	°C	ASTM D92	230
Coefficient of Thermal Expansion	°C	NTR	0.00077/°C
Autoignition Point	°C	ASTM E659	360
Pour Point	°C	ISO 3016	-12
Neutralisation Nr (acid), TAN	mgKOH/g	ASTM D974	<0.05
Maximum Bulk Temperature	°C	NTR	320
Maximum Film Temperature	°C	NTR	340
Boiling Point at 1013 mbar	°C	NTR	365
Average Molecular Weight	NTR	NTR	400
Moisture Content	PPM	ASTM D6304	<100

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We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

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Using Globaltherm® MXT

• Globaltherm^® MXT Heat transfer oil contains a highly resilient blend of additives resistant to sludging and ensures long-lasting and trouble-free service when managed correctly
• This heat transfer oil is a mineral based liquid phase heat transfer oil used for operating at bulk temperatures between -7°C and 320°C in both open and closed circulation.
• Globaltherm® MXT heat transfer oil is resistant to the oxidation and thermal cracking found in many industrial processing environments, including; chemical, pharmaceutical, plastics, paper, wood and textiles.
• Globaltherm® MXT Heat transfer oil is non-toxic and non-corrosive.
• This Heat transfer oil is suitable for a range of indirect open and closed liquid phase industrial heat transfer systems.
• Used oil may be disposed of through a number of environmentally acceptable methods such as used oil recycling or heavy fuels burning.

Talk to us about our all-inclusive reprocessing services.

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Parameter	Unit	Code (ASTM / ISO)	Result
Appearance	N/A	N/A	Clear, yellow oil
Operating Range	°C (°F)	N/A	-7°C - 320°C (19°F - 620°F)
Density @15°C	g/cm¯³	ASTM D 7042	0.879
Kin. Viscosity 40	mm²/s¯¹ (cSt)	ASTM D 7042	34.7
Kin. Viscosity 100°C	mm²/s¯¹ (cSt)	ASTM D 7042	5.6
Open Flash Point	°C	ASTM D92	230
Closed Flash Point	°C	ASTM D92	204
Fire Point	°C	ASTM D92	244
Coefficient of Thermal Expansion	°C	NTR	0.1011%
Autoignition point	°C	ASTM E659-78	393
Pour Point	°C	ASTM D97	-9
Maximum Bulk Temperature	°C	NTR	320
Maximum Film Temperature	°C	NTR	360
Boiling Point	°C	NTR	>343
Average Molecular Weight	NTR	NTR	399
Moisture Content	PPM	ASTM D6304	Not Determined

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We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

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Application

Globaltherm^® J Heat transfer fluid is a superior high performance, energy efficient heat transfer fluid suitable for use in all kinds of industrial processes.

About Globaltherm® J

• This high performance heat transfer fluid is a mixture of isomers of an alkylated aromatic specially engineered for demanding low-temperature applications in liquid phase pressurised systems.

• Globaltherm® J Heat transfer fluid is a heat transfer agent suitable for applications requiring single fluid heating and cooling.

• This fluid is recommended for use in a temperature range from <-80°C (-112°F) up to a maximum bulk temperature of 315°C (600°F) in the liquid phase.

• This heat transfer fluid can also be used in vapour phase systems operating from 181°C to 315°C (358°F - 600°F).

• This heat transfer fluid offers outstanding low-temperature pumpability and excellent thermal stability for protection against accidental overheating.

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Parameter	Unit	Code (ASTM / ISO)	Result
Appearance	N/A	N/A	Clear, colourless liquid
Operating Range	°C (°F)	N/A	<-80°C to 315°C (<-110°F to 600°F)
Density @ 25°C	`kg/m³	ASTM D4052	860
Kin. Viscosity 40°C	mm²/s (cSt)	NTR	0.70
Kin. Viscosity 100°C	mm²/s (cSt)	NTR	0.40
Flash Point (closed)	°C	ASTM D93	57
Fire Point	°C	ASTM D92	60
Autoignition Point	°C	ASTM E659-78	420
Boiling Point	°C	NTR	181
Average Molecular Weight	NTR	NTR	134

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Contact us for more information on high temperature thermal oils

We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Globaltherm® Syntec: Synthetic heat transfer fluid (-3°C – 345°C)

Globaltherm® Syntec is the most popular synthetic heat transfer fluid for high-temperature operations. Engineered for exceptional performance, it operates efficiently at temperatures up to 345°C (653°F) and can be pumped down to -3°C (27°F).

This versatile thermal fluid is ideal for industries such as chemical processing, plastics manufacturing and biodiesel production, ensuring reliable performance in a wide range of indirect heating systems.

About Globaltherm® Syntec

Globaltherm® Syntec is built using advanced hydrogenated terphenyls chemistry, delivering superior results as a heat transfer fluid.

Designed for optimal thermal stability, this synthetic solution ensures operational efficiency even under demanding conditions. Its high-performance capabilities have made it a trusted choice for industrial fluid systems worldwide.

Whether it's maintaining service life in extreme conditions or maximising system efficiency, Globaltherm® Syntec outperforms traditional alternatives. This product is specifically formulated to help your heat transfer process run at full capacity while minimising maintenance and downtime.

Why choose Globaltherm® Syntec?

• Thermal stability: Engineered for excellent temperature tolerance and minimal degradation

• Operational efficiency: Helps maintain consistent perfor-mance across indirect heating systems

• Versatility: Suitable for a broad range of industries and applications

• Extended service life: Designed to reduce replacement frequency, saving costs over time

• Global reliability: Trusted in systems worldwide for con-sistent, high-level performance

With a proven track record in industrial thermal fluid systems, Globaltherm® Syntec offers unmatched reliability and efficiency. From enhancing the longevity of your heating system to supporting critical operations in high-temperature environments, this synthetic heat transfer fluid is designed to meet the unique demands of modern industries.

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Parameter	Unit	Code (ASTM/ISO)	Result
Appearance	N/A	N/A	Clear to pale yellow liquid with a characteristic odour
Operating Range	°C (°F)	N/A	-3° to 345 (27 to 653)
Density @25°C	kg/m³	ASTM D4052	1005
Kin. Viscosity @40°C	mm²/s (cSt)	ASTM D445	29.6
Kin. Viscosity @100°C	mm²/s (cSt)	ASTM D445	3.80
Flashpoint PMC	°C (°F)	ASTM D93	170 (338)
Flashpoint COC	°C (°F)	ASTM D92	184 (363)
Coeefficient of thermal expansion	°C	NTR	0.000819/°C
Autoignition point	°C (°F)	ASTM E659	374 (705)
Pour point	°C (°F)	ISO3016	-32 (-25.6)
Neutralisation Nr (acid), TAN	Mg KOH/g	ASTM D664	<0.2
Maximum Bulk Temperature	°C (°F)	NTR	345 (653)
Maximum film temperature	°C (°F)	NTR	375 (707)
Boiling point at mbar	°C (°F)	NTR	359 (678)
Average molecular weight	NTR	NTR	252 (485.6)
Moisture content	PPM	ASTM E-203	150 ppm

Technical notes

Note: The data provided represents typical performance characteristics and does not constitute a binding specification. These values are subject to allowable production tolerances and may vary across batches. For detailed technical guidance, contact our expert team. Abbreviations: OC, open cup test; COC, Cleveland open cup test; and, NTR, no test reported.

Contact us for more information on high temperature synthetic heat transfer oils.

 

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Streamline maintenance with Thermocare®

To complement the performance of the Globaltherm® range, the Thermocare® thermal fluid lifecycle maintenance program ensures your system operates efficiently and safely. With tailored packages like essential, optimum and ultimate, Thermocare® offers services ranging from live remote condition monitoring to comprehensive fluid maintenance for a fixed price.

This proactive approach reduces operational costs, enhances system safety and improves productivity through expert heat transfer fluid management.

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Need advice on selecting the correct synthetic fluid for your heat transfer applications? For expert guidance on thermal fluid solutions and technical support, call us at +44 (0)1785 760555 or get a quote below.

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Application

Globaltherm^® S is a high performance heat transfer fluid for use in closed loop, non-pressurised heat transfer systems. Primary uses are chemical industries and plastic processing applications.

About Globaltherm® S

Globaltherm^® S is recommended for use in an upper temperature range from 250°C (482°F) to 350°C (662°F), but can be used intermittently at film temperatures as high as 380°C (716° F).

• Globaltherm® S heat transfer fluid is non-corrosive and can be used in non-pressurised heat transfer systems

• This heat transfer fluid can be used in systems requiring start-up temperatures as low as -5°C (23°F) without the need for heat tracing

• Globaltherm® S thermal fluid is thermally stable up to 300°C (572°F) and can be used for several years below this temperature with no adverse impact on performance

• Low viscosity 17cSt @ 40°C (104°F) with a pumping limit at -5°C (23°F)

• This thermal fluid has a high ASTM D93 flash point at 200°C – the highest in class

• Globaltherm® S has high thermal stress resistance in the bulk temperature range  from 60°C-350°C (140°F - 662°F)

• Globaltherm® S has a highly aromatic structure with a boiling point range of 385°C -395°C (725°F -743°F) - the highest in class

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Parameter	Unit	Code (ASTM / ISO)	Result
Appearance	N/A	N/A	Liquid, clear
Chlorine	ppm	DIN 51408	<10
Acid number	mg KOH/g	DIN EN ISO 2114	≤0.02
Density @ 20°C		DIN 51757	1.04 - 1.05
Viscosity @ 20°C	cSt	DIN 51562	42 - 52

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General product description	Unit	Code (ASTM/ISO/DIN)	Result
Boiling point at 1013 mbar	°C	ASTM D 1078	385 - 395
Pour point	°C	DIN ISO 6016	<-34
Flash point	°C	EN 22719	approx. 200
Autoignition temperature	°C	DIN 51794	approx. 500
Permissible heater outlet temperature	°C	NTR	350
Permissible heater film temperature	°C	NTR	380
Pumpability limit	°C	NTR	approx. -5

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We provide advice on how to choose the most appropriate oil for your heat transfer applications and provide our customers with continued technical support.

Call us on +44 (0)1785 760555 for more information

Traditionally, industrial laundry companies used water to heat dryers, irons and other laundry equipment. However, high-pressure steam requires more frequent maintenance which can be costly and increases system downtime. The high pressure required to operate a steam system at the correct temperature also presents a greater risk to the safety of workers in the facility.

Heat transfer fluids can be used in industrial laundry applications instead of water as it will not emit steam, making the facility safer for workers. Engineers should choose a fluid that can maintain high temperatures for extended periods to ensure the process operates consistently and efficiently.

Fluid choice is vital in marine applications as engineers must make sure the system is well maintained and safe as, if a problem were to occur in a remote location, it would be more difficult to respond to.

Manufacturers can use a heat transfer fluid system to maintain asphalt (often referred to as bitumen) at a specific temperature during storage and delivery. The fluid must be able to operate at specific temperatures for long periods of time to keep asphalt at the right temperature and consistency.

Industrial heating and cooling requires a specific heat transfer fluid that can work at specific temperatures for prolonged periods of time. Manufacturers should also look at thermal fluid that performs well at a range of temperatures, so that is can be used in both heating and cooling processes if the application process demands it.

As part of the Dangerous Substances and Explosive Atmospheres Regulations (DSEAR), employers must carry out regular assessments on the fire and explosion risks of any work activities involving dangerous substances, including thermal fluid and synthetics.

In order to comply with DSEAR and provide a safe working environment for all employees, manufacturers should ensure that risk is managed, their site is always safe, and staff are knowledgeable on operating heat transfer systems.

Choosing the wrong heat transfer fluid can cause unplanned downtime. Fluid degradation can occur when a fluid is heated above its maximum bulk temperature. When heated above its temperature, molecules will form and cause thermal cracking that reduces the viscosity, flash point and ignition temperature of the fluid.

Once a fluid has degraded it may impact production or stop it all together. At this point, manufacturers must flush, clean and refill the system with new fluid, which can be costly.

According to a study by Oneserve found that downtime costs UK manufacturers around £180 billion a year. Manufacturers can avoid unnecessary downtime by investing in a thermal fluid that can operate at the temperature range required and proactively monitoring and managing the fluid.

All thermal fluids will degrade over time because they operate at such high temperatures. At these operating temperatures, the bonds that exist between hydrocarbon chains will start to break and form shorter (commonly referred to as ‘light-ends’) and longer chained hydrocarbons (‘heavy-ends’).

The build-up of light-end components is a potential fire risk because they decrease the ignition temperature of the HTF. The accumulation of heavy-ends results in the formation of sticky carbon deposits or sludge and can be monitored by analysing the carbon residue levels in a system operating with thermal fluid.

Fluid degradation can impact the heat transfer system in many ways. Without proactive fluid sampling, there can be a carbon or acid build up in the system, which can lead to a lack of flow or hotspots. Carbon is a natural insulator, so you can encounter problems with uneven heat transfer that impacts production efficiency and increases energy costs.

Manufacturers should implement a preventative maintenance programme to extend the lifespan of the thermal fluid and prevent downtime. Manufacturers should complete regular visual checks and quarterly fluid sampling to determine the condition of the fluid.

Maintenance engineers should take a hot, closed sample of the fluid to get a representative sample and gain an understanding of what is happening to the fluid inside the system.

As well as the fluid, it is important to regularly inspect the entire heat transfer system to check the condition of the pipework, flanged joints, gaskets and seals in the heat transfer system.

Problems with the pipework may cause the system to leak, which is not only dangerous for the engineers working on site, but it also means that oxygen can enter, making the fluid susceptible to degradation and potentially fire, in the event of an ignition source.

Maintenance engineers should also check the pressure gauges to ensure that they are giving accurate readings and ensure there is no wear or tear on the insulation surrounding the system.