Globaltherm® Syntec (-3°C – 345°C)
About Globaltherm® Syntec
Operating Range
-3°C to 345°C
27°F to 653°F
Flash Point
170°C
(338°F)
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 |
| 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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| Product | 200kg barrel | Bulk | 1000kg IBC | 25kg drum |
| Globaltherm® Syntec (-3°C – 345°C) |
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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.
Contact us for more information
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.
