Heat Transfer Fluid
Most heat transfer oil will transfer heat with some degree of efficiency, but what really makes the difference is how long heat transfer oil lasts and how clean it keeps your system.
Our heat transfer oil starts with various extremely stable, naturally resilient base stocks like highly refined, severely hydro treated paraffinic oils and pure silicones. While most heat transfer oils stop there, ours are enhanced with a proprietary blend of additives that ensure long-term, trouble-free operation for all heat transfer applications. Read more in our heat transfer oil comparison report.
Longer Lasting and Cleaner Running Heat Transfer Oil – Guaranteed. read more about our heat transfer oil risk-free trial
High temperature fluids
| Heat Transfer Fluid | Optimal Temperature Range | Fluid Type | Flashpoint | Application | Quick Links |
| Duratherm 600 | 250ºF - 600ºF 121ºC - 315ºC |
Paraffinic | 435ºF | High Oxidation Resistance For any systems open to the atmosphere (plastic processing etc.) |
Data Sheet MSDS Prop vs Temp |
| Duratherm 630 | 300ºF - 630ºF 148ºC- 332ºC |
Paraffinic | 444ºF | High Temp.High oxidation resistance prescribed For apps above 600ºF |
Data Sheet MSDS Prop vs Temp |
| Duratherm 450 | 30ºF - 450ºF -1ºC- 232ºC |
Paraffinic | 302ºF | Heating & Cooling Good Low Temperature Thermal Properties |
Data Sheet MSDS Prop vs Temp |
| Duratherm G | 175ºF - 500ºF 79ºC- 260ºC |
Polyalkylene Glycol |
511ºF | Compatible and upgrade to Ucon 500 |
Data Sheet MSDS Prop vs Temp |
High flashpoint fluids
| Heat Transfer Fluid | Optimal Temperature Range | Fluid Type | Flashpoint | Application | Quick Links |
| Duratherm G | 175ºF - 500ºF 79ºC- 260ºC |
Polyalkylene Glycol |
511ºF | Compatible and upgrade to Ucon 500 |
Data Sheet MSDS Prop vs Temp |
| Duratherm HF | 300ºF - 640ºF 148ºC- 338ºC |
Paraffinic | 530ºF | Meets high flash point requirements |
Data Sheet MSDS Prop vs Temp |
| Duratherm S | -40ºF - 650ºF -40ºC- 343ºC |
Silicone | 615ºF | Highest Oxidation Resistance Specialty Applications |
Data Sheet MSDS Prop vs Temp |
Low temperature fluids
| Heat Transfer Fluid | Optimal Temperature Range | Fluid Type | Flashpoint | Application | Quick Links |
| Duratherm XLT-50 | -50ºF - 350ºF -45ºC - 176ºC |
Hydrocarbon Blend |
210ºF | Precise temperature control for low temperature -50ºF up to 350ºF | Data Sheet MSDS Prop vs Temp |
| Duratherm XLT-120 | -120ºF - 150ºF -84ºC - 65ºC |
Hydrocarbon Blend |
120ºF | Precise temperature control for extreme low temperature -120ºF up to 150ºF | Data Sheet MSDS Prop vs Temp |
Open bath fluids
| Heat Transfer Fluid | Optimal Temperature Range | Fluid Type | Flashpoint | Application | Quick Links |
| Duratherm G | 175ºF - 500ºF 79ºC- 260ºC |
Polyalkylene Glycol |
511ºF | Compatible and upgrade to Ucon 500 |
Data Sheet MSDS Prop vs Temp |
| Duratherm S | -40ºF - 650ºF -40ºC- 343ºC |
Silicone | 615ºF | Highest Oxidation Resistance Specialty Applications |
Data Sheet MSDS Prop vs Temp |
Fluids for batch processing requiring both heating and cooling cycles
| Heat Transfer Fluid | Optimal Temperature Range | Fluid Type | Flashpoint | Application | Quick Links |
| Duratherm LT | -30ºF - 600ºF -34ºC- 315ºC |
Synthetic Hydrocarbon |
329ºF | Wide Process Temp. Ranges Heating and Cooling From -30ºF to 600ºF |
Data Sheet MSDS Prop vs Temp |
| Duratherm S | -40ºF - 650ºF -40ºC- 343ºC |
Silicone | 615ºF | Highest Oxidation Resistance Specialty Applications |
Data Sheet MSDS Prop vs Temp |
Special needs (i.e.food grade)
| Heat Transfer Fluid | Optimal Temperature Range | Fluid Type | Flashpoint | Application | Quick Links |
| Duratherm FG | 300ºF - 620ºF 148ºC- 326ºC |
Paraffinic | 440ºF | Food Grade Applications |
Data Sheet MSDS Prop vs Temp |
| Duratherm LITE | 300ºF - 600ºF 148ºC- 315ºC |
Paraffinic | 435ºF | Ideal for leaky systems or those requiring frequent top ups |
Data Sheet MSDS |
View complete comparison chart
| Heat Transfer Fluid | Optimal Temperature Range | Fluid Type | Flashpoint | Application | Quick Links |
| Duratherm 600 | 250ºF - 600ºF 121ºC - 315ºC |
Paraffinic | 435ºF | High Oxidation Resistance For any systems open to the atmosphere (plastic processing etc.) |
Data Sheet MSDS Prop vs Temp |
| Duratherm 630 | 300ºF - 630ºF 148ºC- 332ºC |
Paraffinic | 444ºF | High Temp.High oxidation resistance prescribed For apps above 600ºF |
Data Sheet MSDS Prop vs Temp |
| Duratherm 630 | 300ºF - 630ºF 148ºC- 332ºC |
Paraffinic | 444ºF | High Temp.High oxidation resistance prescribed For apps above 600ºF |
Data Sheet MSDS Prop vs Temp |
| Duratherm 450 | 30ºF - 450ºF -1ºC- 232ºC |
Paraffinic | 302ºF | Heating & Cooling Good Low Temperature Thermal Properties |
Data Sheet MSDS Prop vs Temp |
| Duratherm HF | 300ºF - 640ºF 148ºC- 338ºC |
Paraffinic | 530ºF | Meets high flash point requirements |
Data Sheet MSDS Prop vs Temp |
| Duratherm FG | 300ºF - 620ºF 148ºC- 326ºC |
Paraffinic | 440ºF | Food Grade Applications |
Data Sheet MSDS Prop vs Temp |
| Duratherm G | 175ºF - 500ºF 79ºC- 260ºC |
Polyalkylene Glycol |
511ºF | Compatible and upgrade to Ucon 500 |
Data Sheet MSDS Prop vs Temp |
| Duratherm S | -40ºF - 650ºF -40ºC- 343ºC |
Silicone | 615ºF | Highest Oxidation Resistance Specialty Applications |
Data Sheet MSDS Prop vs Temp |
| Duratherm XLT-50 | -50ºF - 350ºF -45ºC - 176ºC |
Hydrocarbon Blend |
210ºF | Precise temperature control for low temperature -50ºF up to 350ºF | Data Sheet MSDS Prop vs Temp |
| Duratherm XLT-120 | -120ºF - 150ºF -84ºC - 65ºC |
Hydrocarbon Blend |
120ºF | Precise temperature control for extreme low temperature -120ºF up to 150ºF | Data Sheet MSDS Prop vs Temp |
| Duratherm LT | -30ºF - 600ºF -34ºC- 315ºC |
Synthetic Hydrocarbon |
329ºF | Wide Process Temp. Ranges Heating and Cooling From -30ºF to 600ºF |
Data Sheet MSDS Prop vs Temp |
| Duratherm LITE | 300ºF - 600ºF 148ºC- 315ºC |
Paraffinic | 435ºF | Ideal for leaky systems or those requiring frequent top ups |
Data Sheet MSDS |