Plastics, Polymer and Styrene

Application

The most popular high temperature, synthetic heat transfer fluid. Suitable for operation up to 345°C (653°F) and can pumped to -3°C (27°F) and delivers exceptional performance. Primary applications are chemical industries, plastics processing and biodiesel.

About Globaltherm® Syntec

• Globaltherm® Syntec uses the hydrogenated terphenyls chemistry of the most popular high temperature liquid phase heat transfer fluid. No other heat transfer fluid delivers a higher degree of customer satisfaction.

• Globaltherm® Syntec HTF is used in a wide variety of applications in systems all over the world and delivers ultimate performance to ensure your system is running at maximum capacity and optimum efficiency.

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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

Note: The information given in the typical data does not constitute a specification but is an indication based on current production and can be affected by allowable production tolerances. The right to make modifications is reserved. This edition supersedes all previous editions and information contained within them. Typical values should not be construed as a guaranteed analysis of any specific lot or as specifications for the product. Abbreviations: OC, open cup test; COC, Cleveland open cup test; and, NTR, no test reported.

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Application

Globaltherm^® Omnitech is a high performance synthetic heat transfer fluid designed to meet the demands of liquid or vapour phase systems and indirect heat transfer. The no.1 choice for concentrated solar power and thermal electricity applications, PET and plastics production and chemical industries.

About Globaltherm® Omnitech

Globaltherm^® Omnitech is a synthetic thermal fluid which combines low viscosity and exceptional thermal stability for consistent performance.

• Globaltherm® Omnitech is a diphenyl ether-biphenyl HTF mixture

• The eutectic mixture of diphenyl oxide and biphenylgives this heat transfer fluid flexibility to perform in both vapour and liquid phases. It is miscible and interchangeable (for top-up or dilution purposes) with other similar mix thermal fluids.

• Globaltherm Omnitech HTF has low viscosity (2.5 cst at 40°C [104°F])

• This thermal fluid is excellent for use in heat transfer fluid systems which require very precise temperature control due its ability to operate as a vapour phase fluid

• This heat transfer fluid is highly dependable

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Parameter	Unit	Code	Result
Appearance	N/A	N/A	Clear-to-light yellow liquid with a geranium-like odour
Operating range	°C (°F)		15 to 400 (59 to 752) liquid phase. 257 to 400 (495 to 752) vapour phase
Vapour pressure	Psia		152.02
Freeze Point	°C (°F)	N/A	12°C (53.6°F)
Viscosity (at min. use temp)		ASTM D445	4.91
Viscosity (at max. use temp)		ASTM D445	0.13
Flash Point PMC	°C (°F)	ASTM D93	113 (236 °F)
Flash Point COC	°C		123
Coefficient of thermal expansion	°C		0.000979/ °C
Autoignition point	°C (°F)	ASTM E659	599 (1110°F)
Pour point	°C	ISO 3016	11
Neutralisation Nr (acid), TAN	mgKOH/g	ASTM D974	<0.2
Maximum bulk temperature	°C	NTR	400
Maximum film temperature	°C	NTR	425
Boiling point at 1013 mbar	°C (°F)	NTR	257
Average molecular weight	NTR	NTR	166
Moisture content	PPM	ASTM D6304	<300

Note: The information given in the typical data does not constitute a specification but is an indication based on current production and can be affected by allowable production tolerances. The right to make modifications is reserved. This edition supersedes all previous editions and information contained within them. Typical values should not be construed as a guaranteed analysis of any specific lot or as specifications for the product. Abbreviations: OC, open cup test; COC, Cleveland open cup test; and, NTR, no test reported.

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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

Marlotherm^® SH is the ideal heat transfer fluid for a range of common applications, such as chemical and plastics processing.

Marlotherm^® SH high temperature heat transfer fluid is designed for use in closed loop, non-pressurised heat transfer systems. It delivers ultimate performance to ensure your system is running at maximum capacity and optimum efficiency.

 

Key facts about Marlotherm® SH

• Marlotherm® SH has an operating temperature range of -5° to 350°C (23°F to 662°F)

• Marlotherm®  SH HTF can be used without being pressurised

• Marlotherm® SH is non-corrosive

• It has a high flash point 200°C – one of the highest in its fluid class

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

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Choosing the correct heat transfer fluid

Thermal fluid specialist Global Heat Transfer stocks and delivers a wide range of premium quality heat transfer fluids, including Marlotherm^® SH. The company also provides the complete solution for global thermal fluid supply and management.

If you want advice on how to choose the optimal heat transfer fluid for your application, get in touch by calling +44 (0)1785 760 555. Find contact details for our other offices here.

Marlotherm^® LH is a high temperature heat transfer fluid designed for use in closed loop, forced circulation heat transfer systems.

This high performance heat transfer fluid is predominantly used in pharmaceutical and plastics processing.

What are the advantages of Marlotherm® LH?

• The fluid can be used in both liquid and vapour form due to its narrow boiling range of around 4°C

• Marlotherm® LH is a non-corrosive benzyltoluene HTF

• This thermal fluid has low viscosity for excellent heat transfer efficiency

• Marlotherm® LH is a benzyl aromatic with excellent thermal stability

Marlotherm® LH operating temperature

• Marlotherm® LH is recommended for use in the temperature range from -30°C (-22°F) to 280°C (536°F)

• This heat transfer fluid can also be used intermittently at film temperatures as high as 380°C and used in pressurised systems up to 360°C

• Marlotherm® LH has a high auto-ignition temperature of 450°C (842°F)

• This heat transfer fluid has low pour point and a pumping limit of -30°C (-22°F)

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Choosing the correct heat transfer fluid

If you want advice on how to choose the optimal heat transfer fluid for your application, get in touch by calling +44 (0)1785 760 555. Find contact details for our offices here.

Application

Globaltherm^® RP Heat transfer fluid is a heat transfer agent suitable for applications requiring single fluid heating and cooling including; oil and gas, heat recovery, plastics, polymers and styrene and chemical processing.

About Globaltherm® RP

• Globaltherm® RP Heat transfer fluid is recommended for use in a temperature range up to a maximum bulk temperature of 660°F (350°C) and a maximum film temperature of 710°F (375°C).

• Globaltherm® RP is a diaryl alkyl composition intended for use in applications that require liquid phase heat transfer.

• Globaltherm® RP fluid can be used in non-pressurised systems, and is pumpable to 0°C (32°F).

• Globaltherm® RP can be used in non-pressurized, liquid phase systems and has good low temperature properties, reducing the need for heat tracing.

• Globaltherm® RP has a high flash point at 194°C (381°F) and delivers excellent thermal stability at the maximum use temperature.

• Globaltherm® RP degrades primarily to low molecular weight products, therefore negating build-up of high molecular weight products that must be removed from the system.

• Globaltherm® RP has a toxicity that is considered to be extremely low.

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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

Application

Globaltherm^® HF Heat transfer fluid is a heat transfer agent suitable for applications requiring single fluid heating and cooling including; plastics processing, moulding, casting, asphalt, paint and chemicals.

About Globaltherm® HF

• Globaltherm® HF heat transfer fluid’s flash point is one of the industry’s highest at 536°F (280˚C).

• Not only does this heat transfer fluid have one of the highest flash points available it also contains a resilient blend of additives to ensure trouble-free service when managed correctly.

• Globaltherm® HF heat transfer fluid delivers superior resistance to extreme oxidation and sludging found in many manufacturing environments, including plastics processing, molding, casting, asphalt, paint and chemicals.

• This heat transfer fluid is environmentally friendly, non-toxic and non-hazardous and requires no special handling.

• A superior high performance, energy efficient heat transfer fluid suitable for use in a variety of industrial processes.

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Parameter	Unit	Code (ASTM / ISO)	Result
Operating Range	°C (°F)	N/A	Up to 338°C (640°F)
Apperance	N/A	N/A	Clear, colourless liquid
Density @ 20°C	Kg/m³	ASTM 1298	850-880
Kin. Viscosity 40°C	mm²/s (cSt)	NTR	103
Kin. Viscosity 100°C	mm²/s (cSt)	NTR	10.45
Flash Point	°C	ASTM D92	280
Fire Point	°C	ASTM D92	305
Coefficient of Thermal Expansion	°C	NTR	0.1011%
Auto Ignition Point	°C	ASTM E659-78	393
Pour Point	°C	ASTM D97	-9
Maximum Bulk Temperature	°C	NTR	338
Maximum Film Temperature	°C	NTR	360
Boiling Point	°C	NTR	>343
Average Molecular Weight	NTR	NTR	399
Moisture Content	PPM	ASTM D6304	Not Determined

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

When working with thermal fluids at high temperatures, you should follow the Dangerous Substances and Explosive Atmospheres Regulations (DSEAR) to keep workers safe.

To adhere to these regulations, employers must carry out regular assessments on the fire and explosion risks of any activities involving dangerous substances, including frequent testing and analysis of the condition of thermal fluids.

You should always ensure that you efficiently manage risk, keep the site safe and train all staff on efficiently operating a heat transfer system to comply with regulations and provide a safe working environment for all employees.

Globaltherm™ heat transfer fluids, by Global Heat Transfer are designed for optimum performance in plastic, polymer and styrene manufacturing applications including press heating, moulding, extrusion and coating rolls.

Globaltherm™ heat transfer fluid works effectively to transfer heat over the complete temperature range specified by your application. These oils have been used extensively in the manufacturing of Polyethylene Terephthalate (PET), nylon, polyester and other synthetic fibres.

This range of thermal oils can be used in both liquid and vapour phase, offering you reliability, versatility and flexibility. Globaltherm™ products also provide the high temperature stability necessary to avoid premature fluid degradation at high operating temperatures.

Global Heat Transfer also distributes Marlotherm thermal oil for use in plastic, polymer and styrene applications.

Marlotherm SH is specified for use in closed loop, forced circulation heat transfer systems and operates efficiently in temperatures ranging from -5 to 350 degrees Celsius.

Marlotherm LH is a benzyl aromatic thermal oil recommended for use in temperatures ranging from -30 to 280 degrees Celsius. Marlotherm LH has great thermal stability and can be used for long periods of time without reducing performance.

All heat transfer fluids will degrade over time. The rate of degradation is heavily influenced by how frequently the fluid is tested and managed in response to the test results and the analysis of the data.

The degradation process can lead to the formation of carbon, a natural insulator that builds up in the system. This can lead to a lack of flow or the creation of hotspots, which negatively impacts productivity and increases energy costs.

Degradation can also impact fluid viscosity, cause acidic contamination and lead to the formation of light ends that can increase the risk of fire in the presence of an ignition source.

Regular thermal fluid analysis can help you to extend the lifespan of your thermal fluid. You should take a closed sample of the fluid every three months to effectively monitor its status.

To ensure the sample is representative and the results are accurate, take the sample when the fluid is hot and circulating. By doing this, you can clearly understand what is happening inside the system and if the fluid is beginning to degrade you can also schedule the appropriate maintenance.

We can provide a complete thermal fluid sampling and analysis service to help extend fluid life. Engineers will regularly collect representative samples and send it to an accredited laboratory to run eleven approved thermal fluid tests to determine fluid condition. We can then issue a full report on findings and provide recommendations.

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

Problems with the pipework can cause a leak, which is dangerous for the engineers working on site, and makes the thermal fluid susceptible to ignition if flash points and auto ignition temperatures are reduced and there is an ignition source present.

The best way to maintain a heat transfer system is to implement a preventative maintenance programme.

At Global Heat Transfer we provide a condition based thermal fluid lifecycle maintenance programme, Thermocare. Our expert engineers will work with you to improve accuracy when monitoring fluid, provide technical interventions when necessary, organise maintenance schedules and train staff.